scania_helper.pdf

8/21/2019 Scania_helper.pdf

1/79

NORDHAVN A/S

Montør hjælper 1

SCANIA SERVICE


2/79

Nordhavn A/S

1. Service info DI 9



4. Service info DEC 2

5.

Service info DI 146. Service info DI 16

7. Service info EMS blink koder

8. Service info olie cyklon/centrifuge

9. Service info Kølevand/ Etylen glycol

10. Service info Dyser / indsprøjtnings tidspunkt


3/79

2001-05:1 © Scania Industrial & Marine Engines 19

MAINTENANCE SCHEDULE DI 9

1. More often if required.

2. For engines with few operating hours, see page 18.

3. Earlier if low pressure indicator shows red.4. Applies only to M engines with sea water pump.

5. Reference value. Varies depending on the composition of the sea water.

6. If inhibitor has not been topped up for five years, the coolant should be changed.

D a i l y

First

time at

Interval At least

A t f i r s t s t a r t

4 0 0 h

2 0 0 h

4 0 0 h

1 2 0 0 h

2 4 0 0 h

4 8 0 0 h

A n n u a l l y

E v e r y 5 t h

y e a r

LUBRICATION OIL SYSTEM, page 20

1. Checking oil level

2. Oil change 1

3. Cleaning the lubrication oil cleaner 1

4. Changing the turbo filter 1

COOLING SYSTEM, page 24

5. Checking coolant level

6. Checking corrosion protection rods 4) 5

7. Checking seawater pump impeller 4) 5

8. Checking coolant 6 6

9. Cleaning cooling system 1

AIR CLEANER, page 32

10. Test reading low pressure indicator

11. Cleaning coarse cleaner 1

12. Cleaning or changing filter insert 3

13. Changing safety cartridge

FUEL SYSTEM, page 35

14. Checking fuel level

15. Changing main filter 1

16. Checking injectors

ELECTRICAL SYSTEM, page 37

17. Checking electrolyte level in batteries 2

18. Checking charge state of batteries 2

19. Cleaning batteries 2

20. Checking level monitor

21. Checking temperature monitor

22. Checking oil pressure monitor

23. Checking stop function

MISCELLANEOUS, page 42

24. Checking transmission belt

25. Look for leaks. Remedy as necessary

26. Checking/adjusting valve clearance.

27. Changing (or cleaning) valve for closed crankcaseventilation

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01:01-02 © Scania CV AB 1997 65

Program 96

Specifications

General information

Cylinder configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . In-line engine Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Cylinder bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 mmStroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 mmSwept volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.97 dm3

Number of main bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Firing order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-3-6-2-4Injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DirectOperation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 strokeCooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LiquidApprox. weight, incl. alternator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 805 kg

Direction of rotation (engine viewed from rear) . . . . . . . . . . . . . . . . anticlockwise

Locking compound, lubricants, sealing compoundsT Activator for faster curing of locking compound 561 200. . . . . . . 561 045Locking compount. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561 200Lubricant for exhaust pipe bolts and joints . . . . . . . . . . . . . . . . . . . . 561 205Sealant for cylinder liner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 584 010Thread-locking adhesive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561 019

Cylinder head

Minimum cylinder head height after machining, page 17. . . . . . . . . 114.4 mm

Distance “B” between cylinder head surface and valve head, page 11With new parts, min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.78 mmWith machined parts, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.80 mm

Intake valve

Clearance (cold engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.45 mmHead angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19.4°-19.6°Minimum dimension A for machined valve, page 10 . . . . . . . . . . . . 3.0 mm

Compression ratioOutputEngine speedTorqueOil capacityOil grade

See Operator’s Manual.


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66 © Scania CV AB 1997 01:01-02

Program 96

Exhaust valve

Clearance (cold engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.80 mmH e a d a n g l e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 . 4 ° - 4 4 . 6 °Minimum dimension A for machined valve, page 10. . . . . . . . . . . . .1.7 mm

Intake valve seat

Seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.0°Contact surface width A, page 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 - 2.8 mmV a l v e s e a t r i n g O D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 . 0 6 6 - 5 3 . 0 7 9 m mPosition for valve seat ring, diameter . . . . . . . . . . . . . . . . . . . . . . . . .53.000 - 53.019 mmPosition for valve seat ring, depth. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.25 - 11.35 mm

Exhaust valve seat

Seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45.0°Contact surface width A, page 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.9 - 2.6 mmValve seat ring OD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49.081 - 49.092 mmPosition for valve seat ring, diameter . . . . . . . . . . . . . . . . . . . . . . . . .49.000 - 49.016 mmPosition for valve seat ring, depth. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.25 - 11.35 mm

Valve guides

Length, intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.2 mmexhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.2 mm

Height above surface for valve guide:intake. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.7 mmexhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.7 mm

Rocker arm mechanism

Rocker arm bushing, ID (pressed in and machined). . . . . . . . . . . . . .30.007 - 30.028 mmSurface quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 RaOil hole diameter drilled to same diameter as in rocker arm.


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01:01-02 © Scania CV AB 1997 67

Program 96

Tightening torques

Cylinder head bolts:First tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 NmSecond tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 NmThird tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Nm + 90°

Injector nut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Nm Nut for adjusting screw on rocker arm . . . . . . . . . . . . . . . . . . . . . . . 40 NmRocker cover bolt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 NmExhaust manifold bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 NmRocker arm mechanism bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Nm

Turbocharger

Wear limits

Radial shaft clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.329-0.501 mmAxial shaft clearance (after running in) . . . . . . . . . . . . . . . . . . . . . . . 0.038-0.093 mm

Tightening torques

Bolts, turbocharger - exhaust pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 NmHose clip, exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Nm

Pistons and cylinder liners

Cylinder liner

Shims for cylinder liner, thickness . . . . . . . . . . . . . . . . . . . . . . . . . . 0.20, 0.25, 0.30,0.40, 0.50, 0.75 mm

Cylinder liner height above cylinder block . . . . . . . . . . . . . . . . . . . . 0.27 - 0.33 mm

Maximum permitted height difference on individual liner between measurements read at two diametrically opposite points across the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.035 mm


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68 © Scania CV AB 1997 01:01-02

Program 96

Pistons

Fitted with arrow on piston crown facing forwards.

Piston rings

Number of compression rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Gap: 1st ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4 - 0.75 mm

2nd ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 - 0.6 mmClearance in groove max 2nd ring . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.25 mm

Rings marked “TOP” should be turned with the marking facing upwards.

Number of oil scraper rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 - 0.55 mmC l e a r a n c e i n g r o o v e m a x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 . 2 5 m m

Connecting rods

Connecting rods and caps marked 1 to 6.

Fitted with marking facing inwards.

Tightening torques

Bolts for tension lugs when pressing down cylinder liner . . . . . . . . .50 NmOil sump bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 NmConnecting rod bolts (oiled threads) . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Nm + 90°

Flywheel and flywheel housing

Flywheel

Maximum machining of contact surface for plate: See group 4, Clutch

Ring gear

Heated to 100 - 150 °C before fitting.


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01:01-02 © Scania CV AB 1997 69

Program 96

Flywheel housing

Seal in flywheel housing: Dimension B, page 43 . . . . . . . . . . . . . . . 7 mm

Tightening torques

Flywheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Nm

Bolts for flywheel housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Nm

Timing gear

Camshaft gear

Heated to 100 °C before fitting.Backlash against intermediate gear . . . . . . . . . . . . . . . . . . . . . . . . . . 0.03 - 0.18 mm

Injection pump gear

Backlash against intermediate gear . . . . . . . . . . . . . . . . . . . . . . . . . . 0.03 - 0.16 mm

Intermediate gear

Axial clearance max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.23 mm

Power take-off gear

Backlash against intermediate gear . . . . . . . . . . . . . . . . . . . . . . . . . . 0.03 - 0.18 mm

Camshaft

Axial clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.15 - 0.30 mm


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70 © Scania CV AB 1997 01:01-02

Program 96

Crankshaft

Main bearing races . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diameter:

Standard 95.000 - 94.978 mmUndersize 1 94.750 - 94.728 mmUndersize 2 94.500 - 94.478 mm

Undersize 3 94.250 - 94.228 mmUndersize 4 94.000 - 93.978 mmUndersize 5 93.750 - 93.728 mmUndersize 6 93.500 - 93.228 mm

Fillet radius 4.75 - 4.85 mm

Surface quality 0.25 Ra

Width, max 46.78 mm

Bearing clearance 0.054 - 0.116 mm

Big-end bearing journals . . . . . . . . . . . . . . . . . . . . . . . . . . .Diameter:

Standard 80.000 - 79.981 mmUndersize 1 79.750 - 79.731 mmUndersize 2 79.500 - 79.481 mmUndersize 3 79.250 - 79.231 mmUndersize 4 79.000 - 79.981 mmUndersize 5 78.750 - 78.731 mm

Undersize 6 78.500 - 78.481 mm



Width, max 53.10 mm

Bearing clearance 0.050 - 0.112 mm

T h r u s t b e a r i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T h i c k n e s s :

Standard 3.38 - 3.43 mmOversize 1 3.46 - 3.51 mmOversize 2 3.51 - 3.56 mmOversize 3 3.64 - 3.69 mmOversize 4 3.89 - 3.94 mmOversize 5 4.27 - 4.32 mm

Axial clearance 0.14 - 0.37 mm


10/79

01:01-02 © Scania CV AB 1997 71

Program 96

Tightening torques

Tightening torques

Nut for camshaft gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 Nm Nut for compressor gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 NmBolts for intermediate gear shaft journal . . . . . . . . . . . . . . . . . . . . . . 49 Nm

Main bearing bolts:Stage I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70-90 NmStage II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290 Nm

Flywheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 NmCrankshaft bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 Nm+60°Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Nm

Lubrication system

Oil pump

Backlash:Crankshaft gear - intermediate gear on oil pump . . . . . . . . . . . . . . . 0.03 - 0.36 mmIntermediate gear - crankshaft gear . . . . . . . . . . . . . . . . . . . . . . . . . . 0.03 - 0.16 mm

Oil pressure valve (Note: not safety valve)

Oil pressure:With hot engine at 2000 rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 bar With hot engine at 800 rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . min. 1.5 bar

Free spring length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 mm

Oil cleaner

Permitted thickness of deposits on wall of bowl . . . . . . . . . . . . . . . . 20 mm

Oil filter

Use only genuine Scania filters (screwed on by hand).


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72 © Scania CV AB 1997 01:01-02

Program 96

Tightening torques

Oil pump:

Bolts for oil pump cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Nm

B o l t s , o i l p u m p - c y l i n d e r b l o c k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 N mLock bolt (left-hand thread) for intermediate gear . . . . . . . . . . . . . . .40 Nm

Oil cleaner:

Locknut for oil cleaner housing cover . . . . . . . . . . . . . . . . . . . . . . . . 10 Nm Nut for rotor bowl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tighten by handRotor shaft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Nm

Oil nozzle for piston cooling:

Banjo bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Nm


12/79

01:01-02 © Scania CV AB 1997-05:2 5

Program 96

Valve clearance

Checking and adjusting

Check valve clearance. The clearance for intakevalves should be 0.45 mm and the clearance for exhaust valves should be 0.80 mm when theengine is cold.

Adjustment can be carried out in one of the fol-lowing ways:

A. Adjust both valves in each cylinder startingwith No. 1 cylinder at TDC after compression.

Turn the crankshaft 1/3 turn at a time and adjustvalves in injection sequence:

1-5-3-6-2-4

B. Set No. 1 cylinder at precisely TDC after compression. The following valves can now beadjusted:

cylinder 1 intake and exhaust

cylinder 2 intake

cylinder 3 exhaust

cylinder 4 intake

cylinder 5 exhaust

Turn the crankshaft precisely one revolution sothat TDC for No. 6 cylinder is set. The remainingvalves can now be adjusted:

cylinder 2 exhaust

cylinder 3 intake

cylinder 4 exhaust

cylinder 5 intake

cylinder 6 exhaust and intake

Intake valve

Exhaust valve


13/79



1. More often if required


3. Earlier if low pressure indicator shows red.4. Applies only to M engines with seawater pump.

5. Guidline values. Vary according to composition of seawater.

6. If inhibitor has not been topped up for five years, coolant should be changed.

D a

i l y

First

time at

I nterval At least

A t f i r s

t s t

a r

t

4 0 0 h

2 0 0 h

4 0 0 h

1 2 0 0 h

2 4 0 0 h

4 8 0 0 h

E v e r y y e a

r

E v e r y

5 t h

y e a r



2. Oil change 1



























24. Checking V-belts





14/79

01:02-02 © Scania CV AB 1998 65

Program 96

Specifications

General information

Cylinder configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . In-line engine Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Cylinder bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mmStroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 mmDisplacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.02 dm3

Number of main bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Firing sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-3-6-2-4Injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DirectPrinciple of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 strokeCooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FluidWeight including alternator approx. . . . . . . . . . . . . . . . . . . . . . . . . . . . 990 kgDirection of rotation (engine viewed from rear) . . . . . . . . . . . . . . . . . . Anti-clockwise


Locking compound, lubricants, sealing compounds

Activator T for faster curing of locking compound 561 200 . . . . . . . . . 561 045Locking fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561 200Lubricant for exhaust pipe bolts and joints . . . . . . . . . . . . . . . . . . . . . . 561 205Hydraulic sealant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561 019

See Operator’s Manual or Engine Card

Cylinder head

Minimum cylinder head height after machining, page 17 . . . . . . . . . . . 124.4 mm

Distance ”B” between the surface of the cylinder head and valve disc, page 11

With new parts min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.72 mmWith machined parts max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.80 mm

Intake valve

Clearance (cold engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.45 mmHead angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19.4°- 19.6°Minimum dimension A for ground valve, page 10 . . . . . . . . . . . . . . . . 3.0 mm


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66 © Scania CV AB 1998 01:02-02

Program 96

Exhaust valve

Clearance (cold engine). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.80 mmDisc angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.4°- 44.5°

Minimum dimension A for machined valve, page 10 . . . . . . . . . . . . . . 1.7 mm

Intake valve seat

Seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.0°- 20.5°Width A of contact surface, page 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 - 2.8 mmValve seat ring outer diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56.0 mmSeat for valve seat ring, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.934 - 55.953 mmSeat for valve seat ring, depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.25 - 11.35 mm

Valve seat ring in oversize:Outer diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56.2 mmSeat for valve seat ring, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56.134 - 56.153 mmCooling temperature when fitting valve seat ring . . . . . . . . . . . . . . . . . approx. -80 °C

Exhaust valve seat

Seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45.0°- 45.5°Width A of contact surface, page 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.9 - 2.6 mmValve seat ring, outer diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.0 mm

Seat for valve seat ring, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.914 - 51.933 mmSeat for valve seat ring, depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.25 - 11.35 mm

Valve seat ring in oversize:Outer diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.2 mmSeat for valve seat ring, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.114 - 52.133 mmCooling temperature when fitting valve seat ring . . . . . . . . . . . . . . . . . approx. -80 °C

Valve guides

Height above surface for valve spring washer:Without valve stem seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.75 - 24.25 mmWith valve stem seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.95 - 9.45 mm


Rocker arm bushing, inside diameter (pressed in and machined). . . . . 25.00 - 25.02 mmSurface quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.25 RaDiameter of oil holes (2 holes) drilled to same diameter as in rocker arm.


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01:02-02 © Scania CV AB 1998 67

Program 96

Tightening torques

Cylinder head bolts:First time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 NmSecond time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 NmThird tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Nm + 90°

Nut for injector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Nm Nut for rocker arm adjusting screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 NmBolt for rocker cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 NmBolts for exhaust manifold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Nm

Turbocharger

Wear limits

Shaft radial clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.198-0.564 mmShaft axial clearance (after running in) . . . . . . . . . . . . . . . . . . . . . . . . . 0.025-0.106 mm

Tightening torques

Bolts, turbocharger - exhaust pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Nm

Bolts against turbine housing (exhaust line) . . . . . . . . . . . . . . . . . . . . . 24 Nm


Cylinder liner

Shims for cylinder liner, thickness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.20 , 0.25 , 0.30 ,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.40 , 0.50 , 0.75 mm

Cylinder liner height above cylinder block . . . . . . . . . . . . . . . . . . . . . . 0.22 - 0.28 mm

Maximum permitted height difference on individual liner between measurements read at two diametrically opposed points across the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02 mm

Max. permissible difference in height under same cylinder head . . . . . 0.03 mm


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68 © Scania CV AB 1998 01:02-02

Program 96

Pistons

Fitted with arrow on piston crown towards the front of the engine

Piston rings Number of compression rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Gap: 1st ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.60 - 0.80 mm

2nd ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.50 - 0.70 mmMax. clearance in groove, 2nd ring. . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.25 mm

Rings marked ”TOP” should be turned with the mark upwards

Number of oil scraper rings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.40 - 0.80 mmClearance in groove max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.25 mm

Connecting rods

Connecting rod and cap marked 1 to 6.Fitted with marking in.

Tightening torques

Bolts for tension lugs when pressing down cylinder liner . . . . . . . . . . 60 NmBolts, oil sump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 NmConnecting rod bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Nm + 90°


Flywheel

Maximum machining of contact surface for disc: 2.0 mm

Ring gear



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01:02-02 © Scania CV AB 1998 69

Program 96

Flywheel housing

Seal in flywheel housing: Dimension B, page 46 . . . . . . . . . . . . . . . . . 7 mm

Tightening torques

Flywheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 NmBolts for flywheel housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Nm

Timing gear

Camshaft gear

Heated to 100 °C before fitting.Backlash against intermediate gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.03 - 0.15 mm

Injection pump gear

Backlash against intermediate gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.03 - 0.15 mm

Intermediate gear

Axial clearance max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.238 mm

Bushing for power take-off gear

Diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45.009 - 45.034 mm

Camshaft

Axial clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 - 0.25 mm


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70 © Scania CV AB 1998 01:02-02

Program 96

Radial clear-ance

0.054 - 0.116 mm

Big-end bearing journals . . . . . . . . . . . . . . . . . . . . . . . . . . . Diameter:

Thrust bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thickness:

Standard 84.233 - 84.255 mm

Undersize 1 83.983 - 84.005 mm

Undersize 2 83.733 - 83.755 mm

Undersize 3 83.483 - 83.505 mm

Undersize 4 83.233 - 83.255 mm

Undersize 5 82.983 - 83.005 mm

Undersize 6 82.733 - 82.755 mm



Width, max. 59.10 mm

Radial clearance 0.050 - 0.112 mm

Standard 3.378 - 3.429 mm

Undersize 1 3.454 - 3.505 mm

Undersize 2 3.505 - 3.556 mm

Undersize 3 3.632 - 3.683 mm

Undersize 4 3.886 - 3.937 mm

Undersize 5 4.267 - 4.318 mm

Axial clearance 0.14 - 0.37 mm

Crankshaft

Main bearing journals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diameter:

Standard 101.598 - 101.620 mm

Undersize 1 101.348 - 101.370 mm

Undersize 2 101.098 - 101.120 mm

Undersize 3 100.848 - 100.870 mmUndersize 4 100.598 - 100.620 mm

Undersize 5 100.348 - 100.370 mm

Undersize 6 100.098 - 100.120 mm



Width, max. 51.28 mm


20/79

01:02-02 © Scania CV AB 1998 71

Program 96

Tightening torques

Nut for camshaft gear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 Nm Nut for compressor gear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 NmBolts for intermediate gear shaft journal . . . . . . . . . . . . . . . . . . . . . . . . 39 NmConnecting rod bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Nm + 90°Main bearing bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Nm + 90°Flywheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 NmCrankshaft bolt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 Nm+60°Bolts for crankshaft damper and pulley . . . . . . . . . . . . . . . . . . . . . . . . . 110 NmFan bolts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Nm

Lubrication system

Oil pump

Radial clearance: pump gear - pump housing . . . . . . . . . . . . . . . . . . . . 0.130 - 0.179 mmAxial clearance: pump gear - pump housing cover (without gasket). . . 0.07 - 0.10 mm


Oil pressure:With warm engine at 2,000 rpm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 - 6 barWith warm engine at 800 rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 barFree spring length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.4 mm

Oil cleaner

Permitted thickness of deposits on wall of bowl . . . . . . . . . . . . . . . . . . 20 mm

Oil filter

Use only genuine Scania filters.


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72 © Scania CV AB 1998 01:02-02

Program 96

Tightening torques

Oil pump:

Bolts for oil pump cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Nm

Bolts oil pump - cylinder block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 NmValve sleeve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Nm

Oil cleaner:

Lock nut for oil cleaner housing cover . . . . . . . . . . . . . . . . . . . . . . . . . 10 Nm Nut for rotor bowl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tighten by handRotor shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Nm


Banjo bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 NmM8 Bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Nm


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01:02-02 © Scania CV AB 1998 5

Program 96

Valve clearance

Checking and adjusting

Check valve clearance. The clearance for intakevalves should be 0.45 mm and the clearance forexhaust valves should be 0.80 mm when theengine is cold.

Adjustment can be carried out in one of the fol-lowing ways:

Intake valve

Exhaust valve

1 2 3 4 5 6

1 2 3 4 5 6

A. Adjust both valves in each cylinder startingwith No.1 cylinder at TDC after compression.Turn the crankshaft 1/3 turn at a time and adjustvalves in injection sequence:

1-5-3-6-2-4

B. Set No.1 cylinder at precisely TDC after compression. The following valves can now be

adjusted:

cyl. 1 intake and exhaustcyl. 2 intakecyl. 3 exhaustcyl. 4 intakecyl. 5 exhaust

Turn the crankshaft precisely one revolution sothat TDC for No.6 cylinder is set. The remainingvalves can now be adjusted:

cyl 2 exhaustcyl 3 intakecyl 4 exhaustcyl 5 intakecyl 6 exhaust and intake


23/79

6 © Scania CV AB 1998 01:02-02

Program 96

Compression

Measuring

The compression tester is used to quickly and sim-

ply check wear and damage to primarily the cylin-der head valves, but also to cylinder liners and piston rings.

1. Pressure gauge

2. Zeroing valve

3. Flexible metal hose

4. Test rod5. End sleeve, diameter 21 mm

6. Spacing sleeve with guide lug

7. Spacing sleeve with collar

8. Spacing sleeve, length 6 mm




12. Cap nut

13. Threaded socket nut

14. Large yoke15. Small yoke

Measurements are only intended for comparison between cylinders. Lower compression in one orseveral cylinders is a sign of abnormal wear ordamage.

By using various accessories, the compressiontester can be used for several engine types.

1. Switch off the fuel supply.

2. Clean around injectors. Detach delivery pipesand leak-off pipes from all injectors.

Note Place protective caps on the pres-sure valve holders in the injectionpump and on the injectors in orderto protect them from dirt.

3. Undo and remove the injectors and copperwashers.

4. Turn the engine several times using the starter

motor to remove any loose soot in the cylin-ders.

Compression tester 98 249


24/79

Noter


25/792005-03:1 © Scania Industrial & Marine Engines 29


1. More often if required.


3. Earlier if low pressure indicator shows red.

4. Only applies to M engines with sea water pump.

5. Reference value. Varies depending on the composition of the sea water.

6. If inhibitor has not been topped up for five years, the coolant should be changed.

D a i l y

First

time at

Interval At least

F i r s t s t a r t

4 0 0 h

2 0 0 h

4 0 0 h

1 2 0 0 h

2 4 0 0 h

4 8 0 0 h

A n n u a l l y

E v e r y 5 t h y e a r

LUBRICATING OIL SYSTEM, page 30

1. Checking the oil level

2. Oil change 1

3. Cleaning the oil cleaner 1

4. Renewing the oil filter 1


5. Checking the coolant level

6. Checking the corrosion bars 4) 5

7. Checking the marine water pump impeller 4) 5

8. Checking the coolant 6 6

9. Cleaning the cooling system 1


10. Checking the vacuum sensor

11. Cleaning the coarse cleaner 1

12. Cleaning or renewing filter element 3

13. Renewing the safety cartridge


14. Checking the fuel level

15. Renewing the main filter 1

16. Checking the injectors


17. Checking the electrolyte level in batteries 2

18. Checking the state of charge in batteries 2

19. Cleaning the batteries 2

20. Checking the level monitor

21. Checking the temperature monitor

22. Checking the oil pressure monitor

MISCELLANEOUS, page 5123. Checking the drive belt

24. Checking for leakage, rectify as necessary

25. Checking/adjusting valve clearance

26. Renewing (or cleaning) the valve for closed crankcaseventilation

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26/79

01:03-02 © Scania CV AB, Sweden, 2003-05:6 91

Specifications

General information

Cylinder configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . In-line engineNumber of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Cylinder bore. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mmStroke length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 mmSwept volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.7 dm3

Number of main bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Firing order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-3-6-2-4Injection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DirectPrinciple of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-strokeCooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LiquidApprox. weight, including alternator. . . . . . . . . . . . . . . . . . . . . . . . . . . 990 kgDirection of rotation (engine viewed from rear) . . . . . . . . . . . . . . . . . . Anti-clockwise


Locking compound, lubricants, sealing compound

Activator T for faster hardening of locking compound 561 200 . . . . . . 561 045Locking compound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561 200Lubricant for exhaust pipe bolts and joints . . . . . . . . . . . . . . . . . . . . . . 561 205Thread sealant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561 019Sealing compound for flywheel housing . . . . . . . . . . . . . . . . . . . . . . . . 816 064

See Operator's Manual or Service Card for the particular engine

General tightening torques

The following tightening torques apply in general unless otherwise specified:

Thread M5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.7 NmThread M6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2 NmThread M8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 NmThread M10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 NmThread M12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 NmThread M14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 Nm


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92 © Scania CV AB, Sweden, 2003-05:6 01:03-02

Cylinder head

Intake valve

Valve head angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19.5

Minimum dimension A for ground valve . . . . . . . . . . . . . . . . . . . . . . . 2.6 mmDistance between the surface of the cylinder head and the valve head. 0.75-1.8 mm

Exhaust valve

Valve head angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.5Minimum dimension A for ground valve . . . . . . . . . . . . . . . . . . . . . . . 1.8 mmDistance between the surface of the cylinder head and the valve head. 0.66-1.8 mm

- Check dimension A for each valve.

- Grind the valves in a valve grinding machine

Intake valve seat

Seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.0°-20.5°Width of contact surface A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.9 - 2.6 mmValve seat insert, outer diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46.054 - 46.065 mmSeat for valve seat insert, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46.000 - 46.016 mmSeat for valve seat insert, depth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.25 - 11.35 mm

Oversized valve seat insert:

Outer diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46.254 - 46.265 mmSeat for valve seat insert, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46.200 - 46.216 mmCooling temperature when fitting valve seat insert. . . . . . . . . . . . . . . . approx. -80°C

Minimum dimension A for groundvalve


28/79


Exhaust valve seat

Seat angle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45.0°-45.5°Width of contact surface A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 - 2.6 mmValve seat insert, outer diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.081 - 44.092 mmSeat for valve seat insert, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.000 - 44.016 mm

Seat for valve seat insert, depth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.25 - 11.35 mm

Oversized valve seat insert:

Outer diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.281 - 44.292 mmSeat for valve seat insert, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.200 - 44.216 mmCooling temperature when fitting valve seat insert . . . . . . . . . . . . . . . . approx. -80°C

Tightening torques

Cylinder head bolts:First tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 NmSecond tightening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 NmThird tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 NmFourth tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90°

Nut for injector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 NmBolts for shaft with rocker arms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 NmNut for adjusting screw on rocker arm . . . . . . . . . . . . . . . . . . . . . . . . . 40 NmBolt for rocker cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Nm

Bolts for exhaust manifold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 NmBolts for turbocharger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 NmBolts for support bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Nm

Valve clearances and unit injectors

Valve clearance, intake valve (cold engine) . . . . . . . . . . . . . . . . . . . . . 0.45 mmValve clearance, exhaust valve (cold engine) . . . . . . . . . . . . . . . . . . . . 0.70 mmDimension for PDE31 unit injector (cold engine) . . . . . . . . . . . . . . . . . 66.9 +/- 0.1 mmDimension for PDE32 unit injector (cold engine) . . . . . . . . . . . . . . . . . 69.9 +/- 0.1 mm

Tightening torques

Adjusting screw lock nut on rocker arm for unit injector . . . . . . . . . . . 39 NmAdjusting screw lock nut on rocker arm for valves . . . . . . . . . . . . . . . . 35 NmBolt for upper rocker cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 NmBolt for lower rocker cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 NmSupport bracket and rocker arm shaft . . . . . . . . . . . . . . . . . . . . . . . . . . 105 NmCable connection, unit injector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 +/- 0,2 Nm


29/79


Turbocharger

Wear limits

Shaft radial clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.198-0.564 mmShaft axial clearance (after running in) . . . . . . . . . . . . . . . . . . . . . . . . . 0.025-0.106 mm

Tightening torques

Bolts, turbocharger - exhaust manifold . . . . . . . . . . . . . . . . . . . . . . . . . 63 NmBolts in turbine housing (exhaust pipe). . . . . . . . . . . . . . . . . . . . . . . . . 24 NmV-clamps, exhaust and intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 Nm


Cylinder liner

Shims for cylinder liner, thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.20, 0.25, 0.30, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.40, 0.50, 0.75 mm

Height of cylinder liner above cylinder block. . . . . . . . . . . . . . . . . . . . 0.20 - 0.30 mm

Maximum permitted height difference on one liner betweendimensions measured at two diametrically opposite points . . . . . . . . . 0.02 mm

Pistons

Fitted with arrow on piston crown facing forward.

Piston rings

Number of compression rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Gap: 1st ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.35 - 0.60 mm

2nd ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.45 - 0.65 mmMaximum clearance in groove, 2nd ring. . . . . . . . . . . . . . . . . . . . . . . . 0.25 mm

Rings marked "TOP" should be turned with the marking up.

Number of oil scraper rings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.40 - 0.65 mmMax. clearance in groove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.25 mm


30/79


Connecting rods

Connecting rod and bearing cap marked 1 to 6.Fitted with marking in.

Tightening torques

Oil sump bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 NmConnecting rod bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Nm + 90°


Flywheel

Maximum machining allowance for disc pressure surface: 2.0 mm

Ring gear

Heated to 100 - 150°C before fitting.

Tightening torques

Flywheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Nm + 90°Bolts for flywheel housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M10: 50 Nm

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M12 : 90 Nm


31/79


Timing gear

Camshaft gear


Injection pump gear


Intermediate gear Max. axial clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.238 mm

Camshaft

Axial clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 - 0.25 mm

Tightening torques

Bolts for camshaft gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 NmBolts for intermediate gears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Nm + 60°Bolts for compressor gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 NmConnecting rod bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Nm + 90°Main bearing bolts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Nm + 90°Bolts for driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 NmBolts for crankshaft damper and pulley. . . . . . . . . . . . . . . . . . . . . . . . . 110 NmFlange bolts and banjo bolts for valve tappets . . . . . . . . . . . . . . . . . . . 32 NmBolts for timing gear plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Nm


32/79


Lubrication system

Oil c leaner

Permitted thickness of deposits on wall of cover . . . . . . . . . . . . . . . . . max. 20 mm


Oil pressure:Idle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 barWith warm engine running at 1000 rpm . . . . . . . . . . . . . . . . . . . . . . . . 2.5 barWith warm engine running at 2,000 rpm. . . . . . . . . . . . . . . . . . . . . . . . 4.5 - 6.0 barFree spring length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.4 mm

Oil filter

Only use original Scania filters.

Tightening torques

Oil pump:

Bolts for oil pump cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Nm

Bolts, oil pump - cylinder block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Nm

Oil cleaner:

Lock nut for oil cleaner housing cover . . . . . . . . . . . . . . . . . . . . . . . . . 15 NmNut for rotor bowl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tightened by handRotor shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Nm


Banjo bolt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Nm

Oil cooler:

Bolts for oil cooler insert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Nm


33/79


Valve clearances (engines with injection pump)

Checks and adjustments

Check the valve clearance. The clearance for

intake valves should be 0.45 mm and theclearance for exhaust valves should be 0.70 mmwhen the engine is cold.

The following alternative methods of adjustmentare possible:

I. Adjust all four valves for each cylinder whenat TDC after compression. Start with cylinderNo. 1 and turn the crankshaft 1/3 turn at atime using tool 99 309 in the followinginjection order:

1-5-3-6-2-4

J. Put cylinder 1 at exact TDC after thecompression stroke. The following valves cannow be adjusted:

cyl. 1 intake and exhaust

cyl. 2 intake

cyl. 3 exhaust

cyl. 4 intake

cyl. 5 exhaust

Turn the crankshaft precisely one revolutionso that TDC for No. 6 cylinder is set. Theremaining valves can now be adjusted:

cyl. 2 exhaust

cyl. 3 intake

cyl. 4 exhaust

cyl. 5 intake

cyl. 6 exhaust and intake

O Intake valve

⊗ Exhaust valve

O Intake valve⊗ Exhaust valve


34/79


Adjusting the valve clearance and unit in jectors(engines with PDE unit injector)

Note: Check and adjust the valveclearance and unit injectors at the

same time and with the engine cold.

Checking and adjusting the valveclearance

1. Turn the flywheel (counterclockwise) withtool 99 309 so that the marks on the flywheelcan be seen in the lower opening in the fly-wheel casing. See table on next page fororder of adjustment.

2. Check the valve clearance using a feeler

gauge and, if necessary, use the adjustingscrew on the rocker arm to set the correctclearance. The clearance for intake valvesshould be 0.45 mm and the clearance forexhaust valves should be 0.70 mm when theengine is cold. The intake valves are actuatedby the short rocker arms and the exhaustvalves by the long rocker arms. Make surethe valve bridge is resting correctly againstthe valves.

3. Adjust the unit injectors in accordance withadjustment order in the table and Adjustingunit injectors.

4. If reading cannot be performed from under-neath but only in the upper opening: Startwith the TDC Up position and turn the fly-wheel counterclockwise 120° (1/3 turn) at atime, observe the valve change and adjust inaccordance with the table.

Important The flywheel marking is only correctif the reading is taken through the lower

opening.


35/79


Order of adjustment:

Mark on flywheel

(reading f romunderneath)

Valve

change oncylinder

Adjust

valves oncylinder

Adjustinjector

rocker armon cylinder

TDC Down (0°) 1 6 2

120° 5 2 4

240° 3 4 1

TDC Down (0°) 6 1 5

480° 2 5 3

600° 4 3 6

Adjust ing unit in jectors , PDE31 andPDE32

Important! The PDE31 unit injector is adjustedusing setting tool 99 414 or a digital sliding

caliper.The PDE32 unit injector is adjusted using

setting tool 99 442 or a digital sliding caliper.This adjustment is important because an

incorrectly positioned unit injector may result in poor performance and possible breakdown.

Screw on the rocker arm adjusting screw 1 whilemeasuring the distance between plane a and thetop of the valve spring collar using a digitalsliding caliper.

The dimension should be 66.9 mm for PDE31 and69.9 mm for PDE32.

See dimension B in the figure for identifying the

injector.

Dimension A = PDE31: 66.9 +/- 0.1 mm

PDE32: 69.9 +/- 0.1 mm

Dimension B = PDE31: 36.5 mm

PDE32: 38.8 mm


36/79


WARNING!!Take care when carrying out theadjustment if the dimension is well

outside the adjustment dimension. Thespring is pre-tensioned and can causepersonal injury i f it is released.

PDE31

1. Position setting tool 99 414 with the metalplate around the injector spring.

2. Finely adjust dimension A by simultaneouslyusing a finger to sense that the small piston 2

is level with the flat upper surface of the tool.It is possible to sense differences of less thana tenth of a millimetre.

3. If tool 99 414 is not available: Measure thedistance between plane a and the top of thevalve spring collar using a digital sliding cal-iper. Adjust the rocker position by means ofthe adjusting screw until the dimension is66.9 +/- 0.1 mm.

4. Tighten the lock nut to 39 Nm.

5. See Order of adjustment on page 6 for check-ing/adjusting the injector rockers.

Piston above or below the flat

surface. Adjustment necessary.

Piston level with the flat surface. Adjustment is correct.


37/79


PDE32

1. Position setting tool 99 442 with the metalplate around the injector spring.

2. Finely adjust dimension A by simultaneously

using a finger to sense that the small piston 2is level with the flat upper surface of the tool.It is possible to sense differences of less thana tenth of a millimetre.

3. If tool 99 442 is not available: Measure thedistance between plane a and the top of thevalve spring collar using a digital sliding cal-iper. Adjust the rocker position by means ofthe adjusting screw until the dimension is69.9 +/- 0.1 mm.

4. Tighten the lock nut to 39 Nm.

5. See Order of adjustment on page 6 for check-ing/adjusting the injector rockers.

Piston above or below the flatsurface. Adjustment necessary.

Piston level with the flat surface. Adjustment is correct.



Location of sensors for DEC2 on DI12

1. Connection of lead to charge airtemperature sensor

2. Charge air temperature sensor

3. Oil pressure monitor

4. Connector panel

5. Coolant temperature sensor

6. Engine speed sensorse

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39/7918 © Scania Industrial & Marine Engines 2005-03:1

LED functions during normal operation

Note: The lamp test/fault code switch should not bedepressed. All LEDs come on briefly whenthe control unit is powered up.

CONTROL STATUS

The LED flashes continuously when the controlunit is supplied with current, regardless ofwhether the engine is running or not.

SHUTDOWN

The LED is out.

STARTING

The LED lights up as soon as the engine turnsover on cranking and follows the programmedstarting sequence until it has been completedand then goes out.

RUNNING

The LED comes on when the engine has startedand the "Starting" LED goes out. It remains onuntil the engine is stopped.

TORQUE LIMIT

The LED comes on when the control unitdetects that the engine has received the

maximum permissible quantity of injected fuelaccording to its power curve. This means 100%

power output at the current rpm. If the loadincreases, engine rpm will decrease.

BOOST LIMIT

The LED comes on when the control unit smokelimiter restricts the maximum fuel quantity.Operation of the smoke limiter is dependent onthe charge air pressure.

POWER-

The LED remains out during normal operationas long as no fault is detected by the control

unit. See next page for the procedure to beadopted in the event of a fault.

POWER+

If the control unit is programmed to allow theengine to be operated according to more thanone power/torque curve (map), the followingapplies.

The LED comes on when the engine is run atmore than 100% power output (MAP 2). It goesout when the engine returns to the 100% poweroutput curve (MAP 1) or when the power outputrequired is less than 100%.

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Action in case of a fault

LED indications in case of a fault

Note The main indicator lamp in the main supplybox and at the instrument panel has

indicated a fault. The lamp test/fault codeswitch should not be depressed.

CONTROL STATUS

The LED will continue to flash even in case of afault as long as voltage is supplied to the controlunit.

POWER -

If the LED comes on, the control unit hasdetected a defect that could cause damage to the

engine if operation continues.The control unit automatically reduces engine power output to a predefined level if the corresponding function has been selected.

Action: Reduce engine speed to idle if possibleand conduct troubleshooting according toinstructions on page 20 and the chart on page 21

SHUTDOWN

The LED comes on and the engine is switched off automatically in case of a severe fault that

could cause damage to the engine if operationcontinues.

Action: Conduct troubleshooting according toinstructions on page 20 and the chart on page 21

If the engine has not stopped, reduce enginespeed to idle and conduct troubleshooting.

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41/7920 © Scania Industrial & Marine Engines 2005-03:1

Changing functions using the DIPswitches in the control unit

There are 8 DIP switches in the control unit under theround black rubber cover.

These switches shall be in the ON position to obtainnormal functions according to the operating program.However, for single-speed engines, the normal

position of DIP switches 6, 7, and 8 may also be OFF

Shutdown at threshold values for low oil pressure andhigh coolant temperature can be selected by settingDIP switch 4 to OFF

With DIP switch 4 in position ON , Power- indicationis obtained for these threshold values . Engine outputreduction (LOP) can be selected to prevent damage tothe engine. Changes to the program must only be

performed by authorized personnel.Note Do not operate the engine with a Power-

indication except for in emergencies.

Readout of fault codes

Note If the engine has stopped or lost power butthe main indicator lamp is out and neitherPOWER- nor SHUTDOWN are on, thefault is outside the control unit detectionrange. Probable causes: fuel shortage,temporary overload, mechanical fault.

- Activate the lamp test/fault code switch. InScania electrical equipment the main indicatorlamp is located in this switch on the main supply

box.

- All LEDs will then come on for 2 seconds toindicate that they are intact and in working order.This also applies to the main indicator lamp in themain supply box and the instrument panel. Makea note of any LED that is defective.

- All LEDs will then be out for approximately 4seconds.

- Following this, a fault code will be indicated onone of the LEDs for 2 seconds. Note which LEDit is.

- The control unit then resumes the operating modeautomatically.

- After having made a note of the fault code, resetthe lamp test/fault code switch and reset thecontrol unit by turning off its power supply

momentarily.

- The most probable cause of the fault can then befound in the trouble shooting schedule on the next

page.

- When the fault or faults have been rectified theengine can be restarted.

- If the control system continues to indicate a fault by way of the main indicator lamp, further faultsmay have been recorded. The fault code readoutmust then be repeated as per above since thesystem can only display one fault code at a time.

- The fault(s) will be stored in a special memory inthe control unit along with information about theoperating time when it(they) occurred. Storedfaults can be accessed and erased by authorisedservice personnel.

The DIP switches are showed in ON position

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42/79

2 0 0 5 - 0 3 : 1

©

S c ani aI n d u s t r i al & M ar i n eE n gi n e s

2 1

READOUT OF FAULT CODESLED INDICATION WHEN THE LAMP TEST/FAULT CODE SWITCH IS ACT

C O N T R O L S

T A T U S

S H U T D O W N

S T A R T I N G

R U N N I N G

T O R Q U E L I M I T

B O O S T L I M I T

P O W E R -

P O W E R + Probable cause

DEC2 has detected an internal fault in the control unit.Send in th

possible.

The engine temperature has reached the threshold levelor the temperature sensor is inoperative.

Check thesensor an

The engine has reached the overrevving limit or theengine speed sensor is inoperative.

Check theRenew th

Control rack position sensor inoperative. Check co

The intake air temperature has reached the thresholdlevel or the charge air temperature sensor is inoperative.

Check thesensor an

DEC2 detects no charge air pressure.The charge air pressure sensor is inoperative.

Check thecontrol un

Engine speed potentiometer or the idling safety switch

is inoperative.

Check the

The oil pressure has dropped to the threshold level orthe oil pressure monitor is inoperative.

Check oilRenew th

=LED on

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43/79



1. More often if required


3. Earlier if low pressure indicator shows red.4. Applies only to M engines with seawater pump.

5. Guidline values. Vary according to composition of seawater.

6. If inhibitor has not been topped up for five years, coolant should be changed.

D a i l y

First

time at

Interval At least

A t f i r s t s t a r t

4 0 0 h

2 0 0 h

4 0 0 h

1 2 0 0 h

2 4 0 0 h

4 8 0 0 h

E v e r y y e a

r

E v e r y 5 t h

y e a r



2. Oil change 1



























24. Checking V-belts




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44/79

70 © Scania CV AB, Sweden, 1998:02 01:04-02

Specifications

General information

Cylinder locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V engine

Number of cylinders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Cylinder bor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mm

Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 mm

Swept volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14,2 dm3

Number of main bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Firing sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-4-2-6-3-7-8

Injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Direct

Principle of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 stroke

Cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fluid

Weight, incl. generator, about . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1230 kg

Compression ratio output

Engine speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See operator’s manual or

Torque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . service card for engine

Fluid volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . concerned

Oil grade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Locking compound, lubricants, sealing compounds

Activator T for faster curing of locking compound 561 200 561 045

Locking compound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561 200

Lubricant for exhaust pipe bolts and joints . . . . . . . . . . . . . . . . . . . . . 561 205

Sealing compound for cylinder liners . . . . . . . . . . . . . . . . . . . . . . . . . 584 106

Thread seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561 019

Cylinder head

Minimum height of cylinder head after machining, page 17. . . . . . . . 114,8 mm

Distance ”B” between the surface of the cylinder head and valve disc, page 11

With new parts, minimum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,72 mm

With machined parts, maximum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,80 mm

Intake valve

Clearance (cold engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,45 mm

Head angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19,4° - 19,6°

Minimum dimension A for reground valve, page 10. . . . . . . . . . . . . . 3,0 mm


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01:04-02 © Scania CV AB, Sweden, 1998:02 71

Exhaust valve

Clearance (cold engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,80 mm

Head angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44,4° - 44,6°

Minimum dimension A for reground valve, page 10 . . . . . . . . . . . . . 1,7 mm

Inlet valve seat

Seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20,0° - 20,5°

Contact surface width A, page 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,3 - 2,8 mm

Valve seat ring, outside diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56,0 mm

Seat for valve seat ring, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55,934 - 55,953 mm

Position of valve seat ring, depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11,25 - 11,35 mm

Valve seat ring in oversize:

Outside diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56,2 mm


Cooling temperature on fitting valve seat ring . . . . . . . . . . . . . . . . . . ca -80° C

Exhaust valve seat

Seat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44,0° - 46,0°

Contact surface width A, page 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,9 - 2,6 mm

Valve seat ring, outside diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52,0 mm

Seat for valve seat ring, diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51,914 - 51,933 mmPosition of valve seat ring, depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11,25 - 11,35 mm

Valve seat ring in oversize:

Outside diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52,2 mm


Cooling temperature on fitting valve seat ring . . . . . . . . . . . . . . . . . . ca -80° C

Valve guides

Height above surface for valve spring washer . . . . . . . . . . . . . . . . . . 19,00 - 19,45 mm


Rocker bushing, inside diameter (pressed in and machined) . . . . . . . 30,007 - 30,028 mm

Surface quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,8 Ra

Diameter of oil holes (2 holes) drilled to same diameter as in rocker arm.


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Tightening torques

Cylinder head bolts:

First tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Nm

Second tightening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 Nm

Third tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 Nm

Injector nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Nm

Nut for adjusting screw on rocker arm . . . . . . . . . . . . . . . . . . . . . . . . 40 Nm

Rocker cover bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Nm

Exhaust manifold bolts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Nm

Intake manifold nuts, DSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Nm

Charge cooler cover nuts, DSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Nm

Turbocharger

Wear limits

Shaft radial clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,198-0,564 mm

Shaft axial clearance (after running-in) . . . . . . . . . . . . . . . . . . . . . . . . 0,025-0,106 mm

Tightening torques

Bolts, turbocharger - exhaust pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Nm

V clamps, exhaust and inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 Nm


Cylinder liner

Cylinder liner shims, thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,20 , 0,25 , 0,30 , 0,40 , 0,500,75 mm

Cylinder liner height above cylinder block . . . . . . . . . . . . . . . . . . . . . 0,08 - 0,12 mm

Max. permitted height difference on the same liner measured at twodiagonally opposite points in the transverse direction of the engine . . 0,02 mm


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Pistons

Fitted with arrow on piston crown towards the outside of the engine

Piston rings

Number of compression rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 st

Gap:

1st ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,50 - 0,75 mm

2nd ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,45 - 0,65 mm

Maximum clearance in groove, 2nd ring . . . . . . . . . . . . . . . . . . . . . . 0,25 mm

Rings marked ”TOP” should be turned with the mark upwards

Number of oil scraper rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 st

Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,4 - 0,65 mmMaximum clearance in groove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,25 mm

Connecting rods

Connecting rod and cap marked 1 to 8.

Fitted with marking in.

Weight classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A, B och C

Only weight class B is available as a spare part.

Tightening torques

Bolts for tension lugs when pressing down cylinder liners . . . . . . . . 60 Nm

Oil sump bolts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Nm

Connecting rod bolts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Nm + 90°


Ring gear



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Flywheel housing

Seal in flywheel housing: dimension B, page 46 . . . . . . . . . . . . . . . . . 7 mm

Tightening torques

Flywheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Nm + 60°

Flywheel housing bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Nm

Timing gear

Camshaft gear

Heated to 100 °C before fitting.

Backlash to intermediate gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,05 - 0,15 mm

Injection pump gear

Backlash to intermediate gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,05 - 0,14 mm

Intermediate gear

Maximum axial clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,24 mm

Bushing for power take-off gear

Diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45,009 - 45,034 mm

Cam shaft

Axial clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,15 - 0,30 mm


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Crankshaft

Main bearing races . . . . . . . . . . Diameter:

Standard 101,598 - 101,620 mm

1st undersize 101,348 - 101,370 mm

2nd undersize 101,098 - 101,120 mm3rd undersize 100,848 - 100,870 mm

4th undersize 100,598 - 100,620 mm

5th undersize 100,348 - 100,370 mm

6th undersize 100,098 - 100,120 mm

Fillet radius 4,8 - 5,2 mm

Surface quality 0,25 Ra

Max. width 51,28 mm

Radial clearance 0,054 - 0,116 mm

Connecting rod races . . . . . . . . Diameter:

Standard 89,978 - 90,000 mm

1st undersize 89,728 - 89,750 mm

2nd undersize 89,478 - 89,500 mm

3rd undersize 89,228 - 89,250 mm

4th undersize 88,978 - 89,000 mm5th undersize 88,728 - 88,750 mm

6th undersize 88,478 - 88,500 mm

Fillet radius 4,8 - 5,2 mm

Surface quality 0,25 Ra

Max. width 94,35 mm

Radial clearance 0,050 - 0,112 mm

Thrust bearing . . . . . . . . . . . . . . Thickness:

Standard 3,378 - 3,429 mm

1st oversize 3,454 - 3,505 mm

2nd oversize 3,505 - 3,556 mm

3rd oversize 3,632 - 3,683 mm

4th oversize 3,886 - 3,937 mm

5th oversize 4,267 - 4,318 mm

Axial clearance 0,18 - 0,37 mm


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Tightening torques

Camshaft gear nuts 600 Nm

Compressor gear nuts 200 Nm

intermediate gear shaft journal bolts 39 Nm

Main bearing bolts:

Vertical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420 Nm

Horizontal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Nm + 60°

Flywheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Nm + 60°

Crankshaft bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 Nm + 60°

Crankshaft counterweight bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Nm + 90°

Lubrication system

Oil pump

Radial clearance: pump gear - pump housing . . . . . . . . . . . . . . . . . . . 0,115 - 0,239 mm

Axial clearance: pump gear - pump housing cover (without gasket). . 0,058 - 0,094 mm


Oil pressure:

Warmed-up engine at 2000 rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,5 - 6,0 bar Warmed-up engine at 800 rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,5 bar

Free spring length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70,85 mm

Oil cleaner

Permissible thickness of dirt deposits on cover walls . . . . . . . . . . . . . 20 mm

Oil filter

Use only genuine Scania filters


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Tightening torques

Oil pump

Oil pump cover bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Nm

Bolts, oil pump - cylinder block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 NmValve sleeve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Nm

Oil cleaner

Locknut on oil cleaner housing cover. . . . . . . . . . . . . . . . . . . . . . . . . 10 Nm

Nut for rotor bowl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tighten by hand

Locknut on oil cleaner housing cover. . . . . . . . . . . . . . . . . . . . . . . . . 34 Nm

Oil nozzle for piston cooling

Banjo

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