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Jaguar Cars Limited 2005

JAGUAR SERVICE BULLETIN

Number ll.1 Section Road Wheels and

Tyree

Sheet 1 (of' 2)

Date September, 1960

Since it is now cc:mm:m praatioe i.n many countries t"or oars to be driven at relatively high antising speeds on motorways or similar type roads it is oonaidered advantageous to amd the existing tyre pressure recommendations and to reooamend pressures for nonnal use which are IIUfticient to allow for motorway oomitiorus.

The new reoaanendations are as follows:-

DUNLOP GOlD SEAL TIRES

Noxmal driving including use on motorwqs up to 90 m. p . h . ( 145 k.p.h.)

For BUstained high speed using mexhmun perfo%mance of' the oar

Town use or seoon:ia.ry roads with bad surf'aoea where speeds are limited, minimJm

pressures are pexmisaible

Nonnal. driving inoluaing use on motorways and maximtm perf"ormance of' oar

25 lbs 2

( 1 • 76 kg/ CD )

21 lbs

( 1.48 kg/ as?)

/Continued •••


Town use or secondary roads with bad surfaces where speeds are limi ted• minimum pressures are permissible

Normal use

Fbr sustained high speed

DUNLOP ROAD SPEED TIRES r Normal driving including uae on motol'W8\Va \q) to 110 m.p.h. ( 175 k.p.h.)

For sustained high speed using the nximum performance of the oar

Town uae or secondary roads with bad surfaces where speeda are limited, minimum pressures are p~saible

DUNLOP DURABAND T'X1U.5 I

Normal uae

For sustained high speed

Front

25 lba 2

(1. 76 kw'an )

~

(2.04 kdom')

33 lbs

(2.32 kg/ an2)

29 lbs 2 ·

( 2. 04 lew an )

33 lbs

{2.32 kg/aa2)

29 lbs 2

(2.04 ~an)

29 lbs 2 (2.04 kg/an )

29 lbs

(2.04 'q/ca2)

33 lba

(2.32 kF/an2)

Note: Care fitted with Duraba.Dd tyres must Nor be driven in exoeaa ot 120 m.p.h. { 195 k.p.h.)

/Continaed •••


Service BWJ.etin K.1 continued

XK.14Q AND .IK..1 50

Dl.1NWP ROAD SPEED 'l'YRES

Normal dri viDg including use on motorwa_ya up to 115 m.p.h. (185 k.p.h.)

Por su.stained high speed using the maxinm pert'ormanoe ot the car

Normal use

Front

29 lbs

(2.04 kg/cm2)

33 lbe

(2.32 kg/aa2)

Sheet 2 (ot 2)

Rear -28 lba

(1.97 kglal)

29 lba

(2.04 kg/cm2)

33 lba (2.32 kg/C111

2)

Note: Oars fitted with DurabaD:l tyres DllS'f:. NOT be driven in exoesa of 120 m.p.h. (195 k.p.h.)

KARK Vl.ll AND MARK lX

DUNLOP ROAD SPEED TYRBS

No mal driving including use on motoZ'W83'a up to 100 m.p.h. (160 k.p.h.)

For sustained high speed using the maximum pei:formance of the car

29 lbs ( 2.04 kg/ a:i)

/Conti.mled. overleaf •••

'


PULL LOAD OF PASSmGERS AND LUGGAGE

On al.l models except XK.1 ltD and XK.1 50 it is ~viaa.ble to increase rear tyre pressures by 4 lbs/sq. in (.28 kg/em ) when underta.ld.ng a long journey with a fUll load of passengers and luggage.

For makes and types ot t,res other than those given above, follow the reoazmendation of the tyre manufacturer.


jAGUAR SERVICE BULLETIN

Number K.2 Section Road Wheels and Tyres

Sheet 1 (of 1) Date September, 1960

INTRODOO'l'Iaf OJI 5 J DISC ROAD WHEELS

(Karle 2 )(odels)

llode.l.s at"f'eoted

2. 4 11 tre Mark 2 3.4 litre llark 2 3.8 litre Mark 2

CCIIIIlenains Cha.aaia Number.

R.H. Dr1 ve L. H. Drive

103669 152281 201798

125711 176023 213964

On oars with the above chassis DWDbera and onw.rda 4i J diao type wheels (Part IIWI1ber 0.8738) are r eplaced b,y 5 J wheels {Part JWJDber 0.16827).

The 5 J wheel baa a widc rim that the 4i J wheel and therefore it a replacement i a necessary. it ia important that a similar type ot wheel to the remaining lfheela ia fitted.

ihe type "4i J• or "5 J" ia &tamped in the well of the r1m and a f'urther meau of' identif'i ca.tion i s th.&t the new 5 J wbeela have an amular depreaaion &l'0\1D! the rim (see aketoh).



Number M.3 (2nd Issue) Section Road Wheels and

Tyres Sheet 1 (of 1) Date October, 1962.

This bulletin svpersedes the original issue of November, 1960 which should be destroyed.

11 FLATTING" OF NYLON CORD TYRES

Nylon tyres which are fitted as stanaard equipment to all current production models, have a tendency for the tread to develop a temporary flat at the point of ground contact when the car is left standing for some time, or after a short period of standing following a long run during which high temperat ures have been reached.

These flats can be run out quite quickly but it may be necessary to approach the speeds and temperatures which have led to the "flatting" . For example, flats on tyres which have developed during thjs short stanoing period af£er ~ long fast run will be difficult to r emove if the car is then used for local motoring e specially if the weather has become colder and wetter.

For this reason it i s advisable, when about to balance the wheels, to run the car for a reasonable distance and then immediately remove and balance the wheels; A false impression of the state of balance will be obtained if a flat still exists on the tyre.

Many cases have come to our notice where wheels have been changed for suspected "out of truth" when .i.n fact the actual cause has been a flat on the tyre.



Number M.S. Section Wheels and Tyres

Sheet 1 (of 1) Date July, 1962

TYRE REPLACEMENT AND WHEEL INTERCHAI\GING

(All Current Production Models)

The following instructions for tyre replacement and wheel interchanging supersedes those given in the Handbooks and Service Manuals for all current production models.

The instructions to change over the road wheels every 2,500 miles (41 000 km) in the Service Vouchers can now be disregarded.

When replacement of the rear tyres becomes necessary, fit new tyres to the existing rear wheels and, after balancing, fit these wheels to the front wheel positions on the car, fitting the existing front wheel and tyre assemblies (which should have useful tread life left) to the rear wheel positions on the car.

If at the time this operat ion is carried out the tyre of the spare wheel is in new condition, it can be fitted to one of the front wheel positions in preference to replacing one of the original rear tyres1 which wheel and tyre then become the spare.

Note: Due to the change in the steering characteristics which can be introduced by fitting to the front wheel positions wheels and tyres which have been used on the rear wheel positions, interchanging of part worn tyres from rear to front wheel positions is not recommended.

\



Number M.6. Section Wheels and Tyres.

Sheet 1 ( of 1 ) Date March, 1963.

RETURNING WHEELS UNDER GUARANTEE FOR "RUN-QUTu.

(Cars fitted with disc wheels)

Cases have been experienced of disc wheels being returned under guarantee due to alleged excessive "run-out".

On the return of the wheels to Messrs. Dunlop Ltd., they have been found to be up to specification in every respect.

From our experience of this complaint it is apparent that distributors and dealers are replacing road wheels on the strength o f visual appearance or measurements taken from incorrect points.

It is not- possible to e s t abl ish the degree of run-out without first removing the tyre . The maximwn permissible limit for both lateral 11 run-out'1 and 11 lift11 ( c irctunferential run-out) is 1/16" (1.6 mm) clock gauge reading. These measurements must only be taken from the vertical and horizont al f aces of the tyre bead seat respectively (A and Bon illustration).

Measurement of run-out must not be taken at the outer lip of the wheel rim or from any other points than those stated above.

No claims will be accepted against wheels returned under guarantee which are subsequently found to be within the manufacturers tolerances.


I illQQJ



Number M. 7 • Section Wheels and Tyres.

Sheet 1 ( of 2 ) Date May, 1963.

CHARACTERISTICS OF 1liE DUNLOP SP TYRE.

( 1E' Type and Mark 2 Models).

Dunlop SP tyres are now available for the 'E' Type and Mark 2 models, but are not yet available in the size required for the Mark 10 model.

The purpose of this bulletin is to ensure that distributors and dealers are made aware of the characteristics of these tyres so that they may advise customers who may consider the fitment of Dunlop SP tyres either as replacements or in certain cases conside r specifying them when a new car is ordered.

'E' Type Models ~f

Customers considering the f i trnent of SP ~yres to 'E' Type models should be advised that the characteristics of this tyre introduce the following conditions relative to the normal Dunlop RSS tyre equipment:-

a. The ride quality is harder.

b. The steering, although heavier, shows greater sensitivity but would be acceptable to a certain type of driver.

c. More road noise is transmitted into the car, which would probably not be acceptable to the more fastidious owner.

d. Tyre mileage is increased over that obtained with the standard tyre equipment.

c. $traight running at high speeds is very good and the grip on wet roads is good.

f. Dunlop SP tyres should only be recommended for use by those customers who use the maximum performance of the car or drive at continuous high speed under motorway conditions.

/cont'd ••••••••


NOTE: If Dunlop SP tyres are f i tted as replacements, they must be fitted to all four road wheels and not fitted individually to front only or r ear only.

Mark 2 Models .

You should strongly recommend the average customer or owner of a Mark 2 model car to retain the standard Dunlop RSS tyre equipment as being the most suitable tyre for general use, both from the point of view of silence, ride and steering characteristics.

Dunlop SP tyres are suitable for use on the Mark 2 model wher e the owner consistently uses the maximum performance of the car or consistently drives ~t high speeds under motonvay conditions.

CUstomers interested in the f i tment of SP tyres to a Mark 2 model should, however, be made aware of the fact that with these tyres the characteristics of the car will be changed by:-

a . Heavier steering effort required.

b. Deterioration in ride qual i t y in the lower speed range .

NOTE: If Dunlop SP tyres are fitted as replacements, they must be fitted to all four road wheels and not fitted individually to front onl y or r ear only.

!yre Pressures

The tyres referred to in the foregoing paragraphs requi re t he use of pressures different from those r ecommended with the standard tyre equipment and to obtain satisfactory r esults it is most important that the following tyre pressure r ecommendations are followed:-

'E' Iype Mode l - Dunlop SP or Pirelli Cintura High Speed

Touring and running at sustained speeds up to 130 miles per hour ••··•••··········•·••••••

Running at sustained speeds in the region of the maximum speed •••••••••••••.••.•...•••.

Front

30 psi 2.11kg/cm2

36 psi 2.53kg/cm2

/cont'd ••••••••••

Rear

32 psi 2.2Skg/cm2

38 psi 2.67kg/cm2


gervice Bulletin No. M.7. continued

Mark 2 Model - Dunlop SP or Pirelli Cintura

Normal touring and running at sustained speeds up to 85 miles per hour and with short speed bursts up to 110 miles per hour •••••••••••

Fast touring and running at sustained speeds up to 110 miles per hour with short bursts of maximum speed ••·••••••••••••••••••••••••

Car used at maximum speed capabilities •••••

sheet 2 of 2

Front

28 psi 1 .97kg/cm2

30 psi 2.11kg/cm2

36 psi 2.53kg/cm2

Rear

26 psi 1 .83kg/cm2

28 psi 1.97kg/c~

34 psi 2.40kg/cm2


i I

I

/


Number M. S . Section Wheels and Tyres .

Sheet 1 ( of 1 ) Date November, 1963.

INTRODUCTION OF DUNLOP S. P. TYRES.

Model affected.

Mark 10

Convnencing at the abov (205 x 14) are fitted as standard. Re follows:-

Not more than 3 persons in t he

Full complement of passeng r and/0r luggage

Commencing Chassis Numbers.

R.H.Drive.

307376

L.H .Drive .

353362

· hassis numbers , Dunlop S.P tyres ~ed tyre pressures are as

30 lbs/in2

(2 .1 kg/cm2)

32 lbs/in2 (2.2 kg/cm2)

27 lbs/in2 ( 1. 9 kg/cm2 )

34 lbs/in2 (2.4 kg/cm2 )

If S.P ty ar e used~to rep~~~~ RSS's they must be fitted in

___ O...(Fi a difference ing radius differently calibrated speedomet rs~re~_i ed with S.P tyr part numbers are as follows :-

,-' J ! ~ Miles per hour Kilometres per hour .

car sets.

Syandard t ansmission a:~~V C.22693 C.22694 (,synchrome ·l gea box only I 'l

_/ Overdrive or Automatic Tra ·ssion C.22691 C.22692

Note that for S.P tyres the tyre section is gi ven in metric size and the rim diameter in inches .

/



Number M.8. (2nd issue) Section Wheels and Tyres .

Sheet 1 ( of 1

Date January, 1964.

This Service Bulle tin supersedes the original issue of November 1963, which should be destroyed.

FITTING OF DUNLOP "WEATHERMASTER" TYRES.

(All models)

Distributors and Dealers are advised that Dunlop Weathermaster tyres must NOT be fitted to the rear positions of cars equipped with Dunlop SP tyres at the front .

It is, however, permissibl e to fi t Weathermas ter tyres at the rear to cars equipped with Dunlop RS.5 tyres.

Note: When Weathermaster tyres are fitted maximum speed should be limited to 70 m.p.h (110 k.p.h}.

INTRODUCTION OF DUNLOP SP TYRES.

Model affected.

Mark 10

Commencing chas:;is numbers .

R.H.Drive .

307376

L.H.Drive .

353362

Commencing at the above chassis numbers , Dunlop SP tyres (205 x 14) are fitted as standard. Recommended tyre pressures are as follows:-

Not more than 3 persons in the car

Full complement of passengers and/or luggage

Front.

30 lbs/in2

(2.1 kg/cm2 )

32 lbs/in2

( 2.2 kg/cm2)

Rear.

27 lbs/in2

(1.9 kg/cm2 )

34 lbs/in2 ( 2 • 4 kg/ cm2)

If SP tyres are used to replace RS. 5 's they must be fitted in car sets .

Owing to a diffe r ence in rolling radius differently calibrated speedometers are fitted with SP t yres . The part numbers are as stated overleaf.

/cant' d •••...•.•


Miles per hour Kilometres per hour.

Standard transmission (synchromesh gearbox only)

OVerdrive or Automatic Transmission

C.22693

C.22691

Note that for SP tyres the tyre section is given in metric size and the rim diameter in inches.

C.22694

C.22692

Note: Whilst the performance of the previous RS.5 type of tyre was perfectly satisfactory, wear on the shoulders may cause a slight tendency for the steering to wander on certain road surfaces. Replacement of these tyres with the SP type will overcome this tendency.

When changing from RS.S to SP tyres in service there is no need to change the speedometer as the percentage difference is very slight.


T E.LE Fl'H ONE S

HE.AO OFFICE. ~ W ORKS

t;;O{ENT~v 27677 I PBX'

trT ,..PPOfto,T M JiN T YO

lo'4. MQIJE'EN li'-IZ .. 8i':'l1 T"' 5 Q I)I Ilt. ... DT..,f~

M OT O III C""'!" M .... N V I" ,.C T U1t l!! illt 5

JAGUAR CARS Ll M I T E D

COVENTRY T EI.. EG RA MS JAGU A R C O\IENTRY

"':'E LE X 3 16 2: 2

CQOE.BENTLE Y'S z,.o

Our ref : GGP/RG December, 1963.

To All Distributors and Dealers.

Dear Sirs,

Fitting of Dunlop 11./eathennaster" Tyres.

Distributors and Dealers are advised that Dunlop Weathermaster tyres must NOT be fitted to the rear positions of cars equipped with Dunlop SP tyres at the front.

It is, however, perr.ussible to fit Weathermaster tyres at the rear to cars equipped wi t h Dunlop RS5 tyres.

Note: When Weathennaster tyres are fitt ed maximum speed should be limited to 70 m.p.h (110 k.p.h).

~or

Yours fai ftrully, JiGUAR CA?.~~ l!Iif'ITED.

~r 1 , ,

~. / 1.) I ' . /.. . .-·~ . ,j..J' v '

.·• ' - f . . ;;.

G .(/~PiND CE



Number M.to. Section Wheels and Tyre s.

Sheet 1 ( of 1 ) Date May, 196-1.

REVISED PRESSURE FOR DUKLOP SP TYRES.

(Mark 10 model)

The following are the revised pressures for Murk 10 cars fitted with SP tyres.

Please endorse Service Bulletins M. 8 and M.9 - "Sec also Service Bulletin M. 10".

F'ront. Normal motoring up to 100 m.p.h (160 k.p.h.)

Not more than 3 persons in car 30 lbs/.in2

(2.1 kg/ cm2 )

- Car fully laden

Sustained h.i.gh speeds up to maximum.

- Not more than 3 persons i n car

- Car full y laden

TYR.ES - IMPORTANT.

(All models)

32 lbs/in2

(2.25 kg/cm2)

36 lbs/in2

( 2 . 5 kg/em2 )

38 lbs/in2

(2. 65 kg/cm2)

Rear .

27 lbs/in2

(1 .9 kg/cm2 )

34 lbs/in2

( 2 . "'- kg/ cm2 )

33 lbs/inz ( 2 • 3 kg/ cm2 )

40 lbs/in2

(2.8 kg/cm2 )

The following text will be inserted in future re-prints of the operat ing handbooks and is brought to the notice of Distributors and Dealers:

The importance of having tyres that are in good condition and of the correct type cannot be over-stressed. The Dunlop RS.S Road Speed ( or Dunlop SP) tyres fitted as original e quipment are s pecially produced t o suit the performance of the model concerned and a change of make or type of tyre should not be made unless an assurance is given by t he tyre manufacturer concerned that the alternative type is suitable for the parU.cular car under maximum performance condi t.ions.

/cont'd ••..••••••


It is also particularly important that tyres of different makes, t ypes , or those having different tread patt erns should not be mixed on individual cars as t his may adversely affect the handling and steering characteristics.

A car should not, of course , be driven on bald tyres or on tyres which have only part of the tread left showing. Driving with badly worn tyres on wet roads also greatly increases the risk of "aquaplaning", with consequent loss of steering and braking.


JAGUAR SERVICE BUllETIN

Number M.12. Section Wheels and Tyres.

Sheet 1 ( of 2 )

Date April, 1965.

RADIAL PLY ( SP. 41 ) CAR 1'YRES - SERVICE PROCEDURE.

The following notes ar e provided in order to help Service personnel to deal with problems which may occasionally arise.

The features of r adial ply tyres are explained in Dunlop literature but it is not always r ealised that they can introduce a different kind of "feel" to car driving. We must therefore be careful to establish when a motorist reports adversely on his car behaviour that we are dealing with a condition which ought not to be there and not with something which must be accepted as inherent in radial pl y tyre operation. For instance, while SP tyres offer conside rable advantage in road roar suppression and ride comfort at open road speeds some increase in harshness is inevitable at town speeds as is some increase in steeri ng effort at parking speeds.

1. Lurch.

This is a rollin~ kind of progress where the front or back or both ends of the car appear to lurch from side to side, scmetimes accompanied by a slight up and down movement. These low frequency lateral and vertical oscillations may occur at speeds between 10 m.p.h and 30 m.p.h (16 k.p.h and 48 k.p.h.)

To some extent it is i nherent in the very flexible casing construction of radial ply tyres . More severe cases may be associated with poor suspension damping, possibly due to we akened or faulty shock absorbers, or with severe lateral or radial run-out of the tyre/wheel assemblies. The assemblies should be checked for truth as explained in Section 6, starting with the end of the car which appears to be most affected.

2. Heavy Steering at Low Speeds.

This condition, particularly at parking speeds, must be accepted by the user. If it appears to be abnormal points for checking are tyre pressures, castor angles and excessive friction i n king pin bearings, ball joint and steering box.

3. Surge.

This is a fore and aft hesitancy causing uneven progress. It is related to engine speed and, if present, will occur at tmrn

/cont'd ••.•••••


speeds mainly in the intermediate gears although i t may be present in top gear on some cars.

Here again it is partly inherent in r adial ply construction because the lower torsional rigidity of the casing permits some degree of wind-up between the tread and t he rim. If the condition is not aggravated by other factors it can i n some circumstances be an advantage in providing a more gradual getaway on very slippery surfaces such as ice.

Surge may be more noticeable as t he r e sult of a torque dis turbing factor such as misfiring, unsuitable carburation, momentary fuel starvation or excessive flexibil ity in the engine mountings. Simila rly it may be aggravated by excessive run-out of the driving tyre/wheel assemblies but in this case other forms of vibration would al so be present.

4. Steering Niggle.

This normally refers to a marked torsional oscillation of the steering wheel at speeds up to 50 m.p.h (80 k .p.h.) something similar to that caused by excessive dynamic unbalance .

The f i r st line of attack is to rebalance statically and dynamically and then if necessary to follow the full procedure i n Section 6.

Ni ggl e can be made worse by mechanical f eatures of which the most obvious ar e excessive play in steering bearings and bal l joints and loose steer i ng box and bracket connections to the frame .

s. Pull.

This is a gr eater t han usual tendency for the car to steer to one s ide, when the steering wheel is released. A marked steering e ffort is required to hold the car on a straight course.

First check camber, castor and king pin inclination angles and make sure that they are correct and equal on bot h sides of the car. Equal camber angles are very important and they should not differ between the two sides of the car by more than ~0 •

If steering angles are suspect.ed to be t he cause of the pull two cross ply tyres s hould be fitted to the front \vheels for test only. If the pull persists on cross ply tyrP.s the cause is mechanical.

If the steering angles are correct and the excessive pull does not occur on cross ply tyres refit each SP tyre in turn to the near front wheel with cross ply of t he off front whee l and retest on a fl at road. If one SP t y re is the offender i t may have to be r eplaced but if bot h are similarly affected i t s hould be possible to cancel this by revers ing one tyre on its r i m.

It will be clear that pull to the near s ide will be

/cont'd ••••••••


Service Bulletin No. M.12 continued. sheet 2 ( of 2 )

increased by road camber and pull to the off side reduced or cancelled by it. This can often be used to make an unacceptable condition acceptable, by r eversing or interchanging tyres without the need to replace.

6. High Speed Vibrations.

These are vibrat ions which occur throughout the car at speeds around 80 m.p.h (130 k.p.h.) They are s i milar to vibrations caused by out of bal ance cross ply tyre/wheel assemblies.

The vibrations may result from out of balance in the propeller shaft or play in its joints. Out of balance brake drums, untrue wheels, f a tigued engine mountings and general engine vibration may also be factors other then t he tyres themselves.

First check all tyre/wheel assemblies for static and dynamic balance and correct if neces sary . At the same time check f or lat eral and radial run-out and concentrici ty of the tyr e fitting l i ne. An assembly run-out which exceeds 0.060" (1 .5 nm) on the tread may be suspect.

Should the r un- out exceed 0.06~' ( 1 .5 mm) strip tyre from wheel, check wheel separately at both bead seats for wobble and l iftp and refit t~re to give minimwn run-out (by rotating tyre relative to wheel in 90 steps). At this stage r oad test and if the vibrations are still unacceptable check spare as above. If suitable use to r eplace worst wheel which should be retained as a spare only.

If the measurements of the suspect wheel are within S.M.M. & T., tolerances little can be said to the user even though the wheel may be preventing the achievement of a low assembly run-out. It will be up to the user whether he wishes to buy another wheel from the car agent.

If the wheel exceeds S.M.M. & T., toler ance the user may wish to negotiate with his car agent on the basis of whether the car is sufficiently new to justify a claim or whether the wheel is out of truth from wear and tear.

If the wheel is well wi thin tolerance and an assembly run-out of or below 0.060" (1.5 nm) cannot be achieved the tyre may be exchanged at an appropriate allowance.



Number M. 13. Section Wheels and Tyres.

Sheet 1 ( of 2 )

Date April, 1965.

REVISED TYRE PRESSURE RECOMMENDATIONS.

The t yre pressures for all current production models have been revised and re-issued in a simplified form. The following pressures supersede all previous recommendations for the particular types of tyres quoted and will be included in the Oper ating Handbooks as soon as possible.

In view of the high speeds of which these cars are capable it is impor~ant that the correct tyre pressures are used for all conditions.

2.4 litre Mark 2.

DUNLOP GOLD SEAL C. 41 (TUBELESS) TIRES .

For conditions where maximum performance with sustained speeds is being used, or for touring conditions where the car is fully l aden:

For normal motoring with maximum speed up to 90 m. p.h (1 45 k.p.h.)

For two-up normal motoring to give maximum comfort it is permissible and

Front.

33 lb/in2

( 2, 3 kg/cm2)

28 lb/in2

( 2 , 0 kg/ cm2 )

Rear.

33 lb/ in2

( 2, 3 kg/cm2)

28 lb/in2

(2,0 kg/cm2 )

may be found desirable to reduce the ·rear tyre pressures by 3 lb/i.n (0,2 kg/em)

/ cont 1 d •• •. .••.


2.4,3.4 and 3.8 litre Mark 2.

DUNLOP RS5 TYRES.

For conditions where maximum performance with sustained speeds is being used, or ror touring conditions where the car is Cully 1 aden:

For normal motoring with maximum speed up to 110 m.p.h. (176 k.p.h.)

For two-up normal motoring to give maximum comfort it is permissible and

Front.

33 lb/in2 (2,3 kg/c~)

28 lb/in2 (2,0 kg/crnZ)

may be found desirable to reduce the rear tyre pressures by 3 lb/in2 (0,2 kg/cm2).

DUNLOP S P. 41 TYRES (OPTIONAL)

For conditions where maximum performance with sustained speeds is being used, or for touring conditions where the car i s fully l aden:

For normal motoring wi th maximum speed up to 100 m.p.h (160 k.p.h. )

Front.

36 lb/in2

(2,5 kg/c~)

30 lb/ in2 ( 2, 1 kg!cm2 )

For two-up normal motoring to give maximum comfort it is permissible and may be found desirable to r educe t he rear tyre pressures by 3 lb/in2 (0, 2 kg/cm2 ) .

3.4 'S' and 3.8 'S'.

DUNLOP S P. 41 TYRES.

For conditions where maximum performance with sustained speeds is being used'- or for touring cond~t1ons where the car is fully laden:

For normal motoring with maximum speed up to 100 m.-p.h (160 k.p.h.)

Front.

36 lb/in2

(2,5 kg/cm2 )

30 lb/in2 (2,1 kgjcnil)

Rear.

33 lb/in2 ( 2, 3 kg/ cmZ )

28 lb/iif ( 2, 0 kg/ crif )

Rear.

36 lb/in2

( 2,5 kg/cm2 )

30 l b/in2 ( 2, 1 kg/crnZ)

Rear.

36 lb/in2 (2,5 kg/cm2)

30 lb/in2 ( 2, 1 J<&!cm2)

/cont'd •••••••••••


Service Bulletin No. M.13. continued.

DUNLOP SP.41 TYRES (continued) 3.4 1 S 1 and 3.8 'S'

For two-up normal motoring to give maximum comfort it is permissible and may be found desirable to reduce the rear tyre pressures by 3 lb/in2 (0,2 kg/cm2).

4.2 Mark 10.

DUNLOP SP .41 TYRES.

For conditions where maximum performance with sustained speeds is being used, or for touring conditions whe~e the car is fully laden:

For normal motoring with maxj_~um speed up to 100 m.p.h (160 k.p.h.)

For two-up normal motoring to give

Front.

38 lb/ in2

(2,7 kg/cm2 )

30 lb/in2

(2,1 kg/cm2 )

maximum comfort it is permissible and may be found desirable to reduce the rear tyre pressures by 3 lb/in2 (0,2 kg/cm2).

sheet 2 ( of 2 )

Rear.

38 lb/in2

( 2, 7 kg/ cm2)

30 lb/in2

( 2, 1 kg/cm2)



Number M.16 Section ~~heels and Tyres

Sheet 1 (of 1) Date November, 1965

PRESSURES - WINTER EQUIPMENT TYRES

4.2 Mark 10, 3.4/3.8 'S' Type, 2.4/3.4/3.8 Litre Mark 2 MOdels

The Dunlop Rubber Co. Lt d., have introouced a radial ply tyre with a Winter tread patt ern known as t he Weathermaster SP.44 for use when snow conditions make the use of special tyres nece~;sary.

These tyres must only be used on the rear wheels when SP.41 tyres are fitted to the front wheels and are subject to the following speed limitat ions and pr e s sure recommendations.

Pressure

4.2 Mark 10- Up to 85 m.p. h( 136 k.p.h.) - 30lb/sq . i n( 2, 1 kg./cm2) 2 Maximum 95 m.p.h . (152 k .p.h. ) - 38lb/sq. i n.(2,7 kg/em)

3.4/3.8 'S' Type- Up to 85 m.p.h. (136 k.p.h.)- 30lb/sq.in.(2.1 kg.{cm2

) Maximum 95 m.p.h.(152 k .p . h.) - 36lb/sq.in.(2,5 kg/em~)

2.4/3.4/3.8 Mark 2- Up to 85 m.p.h.(1 36 k.p.h.)- 30lb/sq.jn.( 2,1 ~g/cm2 ) Maximum 95 m.p.h.(152 k.p.h.) - 36lb/sq.in.(2,5 k~/cm)

The speed limitations and tyre pressure recommendations for 4.2 'E' Type car s when fitted with Weathe rmaster SP.44 t yres are covered in Service Bulletin M.lS.


JAGUAR SERVICE BULLETIN .

Number M.\9 Section Road Wheels and Tyres

Sheet .l of \ Date July, 1 967

WIRE SPOKED ROAD WHEELS

Chromium plated wire spoked road wheels are protected by a clear lacquer which, under normal circumstances, should NEVER by removed. Should removal become necessary, however, the best results can be obtained by using British Domolac Llo-42 Cellulose Thiru~rs .

UNDER 00 CIRCUP.flT~F.S SHOULD A WIRE SPOKED ROAD \\HEEL BE REPLACED ON THE CAR IN AN UNLACQUERED CONDITION.

To re-lacquer, the wheels should be treat ed with "NECOL", which i s an I .C.I. clear cellul ose air-drying wheel lacquer. This will obviate r ust stains originating at the unpro tected t hreaded portion of spokes, etc.



Number M.20 Section Wheels and Tyres

Page 1 of 1 Date January, 1968

WIRE WHEELS

Mode ls affected

4 .2 1 E1 Type F.H.C. 4.2 1 E' Type Open 2 Seater _ 4.2 1 E' Type 2 + 2 -2.4 Mark 2 ----11 ~ 3.4Mark2 ~ 3.8 Mark 2 3.4 'S' Type 3.8 'S' Type 420

Commencing Chassis Numbers Chromed Painted

R.H.D. L.H.D. R.H.D. L.H.D. 1E.21518 1E.34339 1E.21579 1E.34458 1E.1814 tE.t5487 1E.t853 1E.l5753 1 £ . 50912 1 E. 77475 1 E.50972 1 E. 77602 121316 128321 121531 128378 171638 181429 171841 181535 235309 224714 235327 224737 18.8501 1B.26224 18.8501 1B.26224 18.59494 18. 80282 18.59494 18.80282 1 F .3262 1 F .26646 1 F .3858 1 F.26849

Commencing at the above chassis numbers, improved wire wheels in plated or painted form incorporating a forged centre hub and strai ght spokes are fitted.

Due to the configuration of the spokes, the wheels are not interchangeable with the previous type except as car sets (5 per car).



Number M.21 Section Whee ls and Tyres

Page 1 of 1

Date January, 1 968

DUNLOP 5. P. 41 TYRES

Followi ng improved methods of production g 1v1ng a better balanced tyre , t he "Red Spot " mentioned in Bulletin M.1 7 may not now a ppear on all SP. 41 t yres .

Consequently, in all instances where the "Red Spot" has been omitt ed, the fitt ing instruct ions detailed i.n Bullet in M.17 can be ignored and normal tyre fitting methods employed.



Number M.25 Section Wheels and Tyres

Page 1 of 1

Date April, 1 969

DUNLOP WEATHERMASTER TYRES

The attention of all Distributors and Dealer s is drawn to t he fact that i f Dunlop "WEATHERl\1ASTER" t yres (size 205 x 14 or 185 x 15) are fitted, it is imperative that the special inner tube which is avai lable for this purpose shall also be fitted. Under no circumstances should a standard inner tube be used.

The special tubes are identified by t he size and t he words "WEATHERMASTER ONLY" being printed t hereon.

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