ford probe

ENGINE OVERHAUL

1994 FORD MOTOR CO. ENGINES 2.0L 4-Cylinder

ENGINE IDENTIFICATION

Engine model may be identified by eighth character of Vehicle Identification Number (VIN). VIN is stamped on a plate located on top of instrument panel, near lower left of windshield. VIN is also stamped on Vehicle Certification Label, located on left front door pillar.

ENGINE IDENTIFICATION CODES

ADJUSTMENTS

VALVE CLEARANCE ADJUSTMENT

Hydraulic valve lash adjusters are used. No valve adjustment is required.

TIMING BELT DEFLECTION

Timing belt deflection is automatically adjusted by timing belt tensioner. No adjustment is necessary.

REMOVAL & INSTALLATION

FUEL PRESSURE RELEASE

Start engine. Remove fuel pump relay from main fuse block located next to battery. Let engine run until it stalls. Turn ignition off. Disconnect fuel lines.

NOTE: For engine repair procedures not covered in this article, see ENGINE OVERHAUL PROCEDURES - GENERAL INFORMATION article in the GENERAL INFORMATION section.

Application VIN Code

2.0L 4-Cylinder A

CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

NOTE: For reassembly reference, label all electrical connectors, vacuum hoses and fuel lines before removal. Also place mating marks on engine hood and other major assemblies before removal.

WARNING: Fuel system is under pressure. Release pressure before servicing fuel system components.

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ENGINE OVERHAUL 1994 FORD MOTOR CO. ENGINES 2.0L 4-Cylinder

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jueves, 23 de agosto de 2012 07:36:47 a.m. © 2005 Mitchell Repair Information Company, LLC.

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ENGINE

Removal (A/T)

1. Release fuel pressure. See FUEL PRESSURE RELEASE. Disconnect fuel inlet and return lines. Disconnect battery cables. Remove battery and tray. Drain cooling system and engine oil. Remove hood. Remove air cleaner assembly and air ducts.

2. Remove accessory drive belts. Remove A/C compressor mounting bolts, and position compressor aside with refrigerant lines connected. Mark and remove vacuum hoses and wire harness connectors as necessary. Disconnect engine ground straps. Disconnect distributor connector. Disconnect accelerator cable.

3. Remove power steering pump mounting bolts. Remove power steering pump and position aside with hoses connected. Remove heater hoses and both radiator hoses. Remove starter upper mounting bolt. Raise and support vehicle. Remove lower engine splash shields. Remove intake manifold support bracket.

4. Disconnect starter motor wiring, and remove lower mounting bolt. Remove starter. Disconnect transaxle cooler lines from radiator. Remove transaxle halfshaft bearing support. Remove torque converter access cover.

5. Remove torque converter nuts. Disconnect oxygen sensor. Remove exhaust pipe and mounting flange from exhaust manifold. Disconnect wiring and remove alternator. Remove all accessible transaxle-to-engine mounting bolts. Remove crankshaft pulley. Lower vehicle.

6. Install engine lifting hoist. Slightly raise transaxle with floor jack. Remove right engine mount. Remove remaining transaxle-to-engine bolts. Remove any hoses, wires or other components still connected to engine. Carefully separate engine from transaxle. Remove engine from vehicle.

Installation (A/T)

To install, reverse removal procedure. Tighten transaxle-to-engine bolts in sequence to specification. See Fig. 1. Tighten remaining bolts/nuts to specification. See TORQUE SPECIFICATIONS TABLE at the end of this article. Check all fluid levels. Start engine and check for leaks.

NOTE: On A/T models, remove engine without removing transaxle from vehicle. On M/T models, remove engine and transaxle as an assembly.

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Fig. 1: Transaxle Bolt Tightening Sequence (A/T)

Courtesy of FORD MOTOR CO.

Removal (M/T)

1. Release fuel pressure. See FUEL PRESSURE RELEASE. Disconnect fuel inlet and return lines. Disconnect battery cables. Remove battery and tray. Remove hood. Drain cooling system and engine oil. Remove air cleaner assembly and air ducts.

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2. Remove radiator hoses and radiator. Mark and remove vacuum hoses and wiring harness connectors as necessary. Disconnect engine ground straps. Disconnect accelerator cable from throttle body. Remove power steering pump with hoses attached, and set aside. Loosen alternator adjusting bolt, and remove alternator belt.

3. Remove heater hoses. Remove starter upper mounting bolt. Remove speed control actuator mounting nuts, and set actuator aside. Remove ignition coil and ignition control module. Remove fuel filter mounting bracket bolts, and position fuel filter and bracket aside.

4. Remove rear transaxle mount through bolt. Remove transaxle ground strap. Disconnect Brake On/Off (BOO) switch connector at rear of transaxle. Remove clutch slave cylinder with hydraulic hose attached, and set aside. Raise and support vehicle. Remove lower engine splash shields. Remove front wheels.

5. Remove crossmember bolts and crossmember. Remove transaxle cradle nuts and bolts, and remove transaxle cradle. Remove transaxle lower mount bolts. Remove lower mount. Remove intake manifold support bracket. Remove 3 rear transaxle mount bolts, and remove rear transaxle mount. Remove lower starter bolt, and disconnect starter wiring. Remove starter.

6. Remove exhaust pipe mounting flange from exhaust manifold. Disconnect speedometer cable. Remove gearshift stabilizer bar. Remove tie rod ends from steering knuckles. Remove axle shafts. See FWD AXLE SHAFTS article in DRIVE AXLES. Disconnect shift control rod and extension bar from transaxle.

7. Disconnect wiring from alternator. Remove lower through bolt and alternator. Remove crankshaft pulley. Lower vehicle. Slightly raise engine with jack, and remove right engine mount. Attach engine lifting hoist to lifting eyes on engine. Remove left transaxle mount. Remove any hoses , wires or other components still connected to engine. Lift engine and transaxle from vehicle.

Installation (M/T)

To install, reverse removal procedure. Tighten bolts and nuts to specification. See Fig. 2. Check all fluid levels. Start engine and check for leaks.

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Fig. 2: Transaxle Bolt Tightening Sequence (M/T)Courtesy of FORD MOTOR CO.

INTAKE MANIFOLD

Removal

1. Release fuel pressure. See FUEL PRESSURE RELEASE. Disconnect fuel inlet and return lines.

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Disconnect negative battery cable. Remove air cleaner and air ducts. Mark and remove vacuum hoses and wire harness connectors as necessary. Disconnect coolant lines from throttle body and idle air control valve.

2. Disconnect accelerator cable. Disconnect brake vacuum hose from left side of intake manifold. Remove PCV valve from valve cover. Raise and support vehicle.

3. Remove intake manifold support bracket. Remove EGR tube from intake manifold. Lower vehicle. Remove intake manifold bolts/nuts. Remove intake manifold assembly.

Installation

Clean gasket mating surfaces. Position new gasket on intake manifold. Install and tighten bolts/nuts in sequence to specification. See Fig. 3. See TORQUE SPECIFICATIONS TABLE at the end of this article. To complete installation, reverse removal procedure.

Fig. 3: Intake Manifold Bolt Tightening Sequence


EXHAUST MANIFOLD

Removal

1. Disconnect negative battery cable. Remove 7 bolts retaining exhaust manifold heat shield. Remove heat shield. Disconnect oxygen sensor connector. Remove oxygen sensor using Oxygen Sensor Wrench (T79P-9472-A).

2. Raise and support vehicle. Remove converter pipe-to-exhaust manifold nuts and discard nuts. Remove EGR tube from back of exhaust manifold. Lower vehicle. Remove exhaust manifold bolts/nuts and manifold. Discard gasket.

Installation

Clean gasket mating surfaces. Install new gasket and exhaust manifold on cylinder head studs. Tighten manifold bolts/nuts in a crisscross pattern to specification. See TORQUE SPECIFICATIONS TABLE at

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the end of this article. To complete installation, reverse removal procedure.

CYLINDER HEAD

Removal

1. Release fuel pressure. See FUEL PRESSURE RELEASE. Disconnect fuel inlet and return lines. Disconnect negative battery cable. Drain cooling system. Remove air cleaner assembly and air ducts.

2. Remove power steering hose bracket bolts from valve cover. Remove accessory drive belts. Remove power steering pump drive belt idler pulley shield. Remove power steering pump with hoses attached and position pump aside.

3. Remove exhaust manifold. See EXHAUST MANIFOLD. Remove valve cover. Remove timing belt. See TIMING BELT. Remove intake manifold support bracket. Disconnect wiring harness connectors, vacuum hoses and coolant hoses as necessary.

4. Remove coolant outlet with temperature sensor from cylinder head. Disconnect accelerator cable. Disconnect brake booster vacuum hose from left side of intake manifold. Remove distributor. Remove camshafts. See CAMSHAFT.

5. Remove cylinder head bolts in sequence. See Fig. 4. Remove cylinder head and intake manifold as an assembly. Remove cylinder head gasket.

Fig. 4: Cylinder Head Bolt Loosening Sequence


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Inspection

Ensure all mating surfaces are clean. Check cylinder block, cylinder head and manifold surfaces for warpage and cracks. See CYLINDER BLOCK and CYLINDER HEAD tables under ENGINE SPECIFICATIONS.

Installation

1. To install, reverse removal procedure. Ensure No. 1 piston is still at TDC and camshaft timing marks align. See Fig. 7. Position cylinder head gasket on engine block.

2. Install cylinder head using NEW cylinder head bolts. Tighten bolts in sequence to specification. See Fig. 5. See, at the end of this article, TORQUE SPECIFICATIONS TABLE.

3. Install timing belt. See TIMING BELT. To complete installation, reverse removal procedure. Tighten remaining bolts to specifications. Fill or top off fluids. Start engine and check for leaks.

Fig. 5: Cylinder Head Bolt Tightening Sequence


CRANKSHAFT FRONT OIL SEAL

Removal

Remove timing belt. See TIMING BELT. Remove crankshaft sprocket. Using Seal Remover (T92C-6700-CH), remove oil seal.

Installation

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Apply engine oil to new oil seal. Using Seal Installer (T47P-6150-A), install new oil seal. Ensure seal is fully seated. To complete installation, reverse removal procedure.

TIMING BELT

Removal

1. Disconnect negative battery cable. Remove accessory drive belts. Remove spark plug wires and valve cover. Install Three-Bar Engine Support (014-00750). Slightly raise engine with a jack. Remove right engine mount. Remove upper timing belt cover.

2. Remove water pump pulley. Raise and support vehicle. Remove right front wheel. Remove right upper and lower splash shield. Remove crankshaft pulley, crankshaft pulley guide plate. See Fig. 6. Remove lower timing belt cover. Temporarily install crankshaft pulley bolt.

3. Rotate crankshaft clockwise and align crankshaft sprocket timing notch with line on oil pump. Ensure camshaft sprocket timing marks align. See Fig. 7. Install Camshaft Pulley Holder (T92C-6256-AH). Using an Allen wrench, turn timing chain tensioner and remove tensioner spring. Remove timing belt.

CAUTION: DO NOT rotate crankshaft or camshafts with timing belt removed. Damage to valve/piston may result.

NOTE: Mark direction of timing belt rotation if reusing belt.

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Fig. 6: Exploded View Of Timing Belt Components


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Fig. 7: Aligning Camshaft & Crankshaft Timing MarksCourtesy of FORD MOTOR CO.

Installation

1. Install timing belt. Rotate tensioner clockwise with an Allen wrench, and install tensioner spring. Ensure timing marks on crankshaft sprocket and engine block align. See Fig. 7.

2. Remove camshaft pulley holder, and ensure camshaft sprocket timing marks are still aligned. Rotate crankshaft clockwise 2 full revolutions. Ensure all timing marks align.

3. If timing marks do not align, remove timing belt. Repeat steps 1)and 2). To complete installation, reverse removal procedure. Tighten bolts to specification. See TORQUE SPECIFICATIONS TABLE at the end of this article.

CAMSHAFT SEALS

Removal

Remove timing belt. See TIMING BELT. Disconnect spark plug wires. Remove valve cover. Using a wrench, hold cams stationary and remove camshaft sprocket retaining bolt. Remove camshaft sprocket. Using a universal seal puller, remove camshaft oil seal.

CAUTION: DO NOT rotate crankshaft or camshafts with timing belt removed. Damage to valve/piston may result.

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Installation

1. Apply clean engine oil to lip of new camshaft oil seal. Using Cam Seal Protector (T90P-6256-AH) and Cam Seal Replacer (T90P-6256-BH), install new oil seal.

2. Install camshaft sprocket. Ensure camshaft sprocket timing marks align. See Fig. 7. To complete installation, reverse removal procedure. Tighten bolts to specification. See, at the end of this article TORQUE SPECIFICATIONS TABLE.

CAMSHAFT

Removal

1. Disconnect negative battery cable. Rotate crankshaft clockwise until No. 1 piston is at TDC. Remove distributor cap. Remove distributor mounting bolts and distributor. Remove timing belt. See TIMING BELT. Disconnect spark plug wires. Remove valve cover.

2. Using a wrench, hold cam stationary and remove camshaft sprocket retaining bolt. Remove camshaft sprocket. Remove camshaft bearing cap bolts in reverse order of tightening sequence. See Fig. 8. Note camshaft bearing cap location, and remove bearing caps. Remove camshaft and camshaft oil seal.

CAUTION: DO NOT rotate camshafts with timing belt removed, possible engine damage could result.

NOTE: Camshaft bearing caps are marked with an identification number and arrow to indicate location and direction.

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Fig. 8: Camshaft Bearing Cap Bolt Tightening Sequence


Installation

1. Apply clean engine oil to camshaft journals and bearings. Install camshaft. Apply silicone sealant to areas shown before installing camshaft bearing caps. See Fig. 8. Install camshaft bearing caps in their original location.

2. Install camshaft bearing cap bolts and tighten in sequence to specification. See Fig. 8. See TORQUE SPECIFICATIONS TABLE at the end of this article. Apply clean engine oil to lip of new camshaft oil seal.

3. Using Cam Seal Protector (T90P-6256-AH) and Cam Seal Replacer (T90P-6256-BH), install new oil seal. Install rear timing cover. To complete installation, reverse removal procedure. Tighten bolts to specification.

CRANKSHAFT REAR OIL SEAL

Removal

Remove transaxle. See appropriate information in TRANSMISSION REMOVAL & INSTALLATION -

A/T article in TRANSMISSION SERVICING. Remove flexplate (A/T) or flywheel (M/T). Using a universal seal remover, remove oil seal from rear seal housing. If seal is difficult to remove, remove seal

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housing and seal.

Installation

Apply a continuous bead of silicone sealer to rear oil seal housing, and install housing (if removed). Apply engine oil to new oil seal. Using Rear Crankshaft Seal Replacer (T88P-6701-B1), install rear oil seal. Ensure seal is installed flush with edge of seal housing. To complete installation, reverse removal procedure. Tighten bolts/nuts to specification. See TORQUE SPECIFICATIONS TABLE at the end of this article.

WATER PUMP

Removal

1. Disconnect negative battery cable. Drain cooling system. Remove accessory belts and timing belt. See TIMING BELT. Raise and support vehicle. Remove engine splash shields.

2. Using Water Pump Pulley Holder (T92C-6312-AH), remove water pump pulley. Remove power steering pump bracket from water pump. Remove 5 water pump bolts, and remove water pump. Clean gasket mating surfaces.

Installation

Install new gasket on water pump. Install water pump and tighten bolts to specification. See TORQUE

SPECIFICATIONS TABLE at the end of this article. To complete installation, reverse removal procedure. Tighten bolts to specification. Fill cooling system. Start engine and check for leaks.

OIL PAN

Removal

1. Disconnect negative battery cable. Raise and support vehicle. Remove engine splash shields. Drain engine oil. Disconnect oxygen sensor wire. Remove exhaust pipe from exhaust manifold. Remove oil pan-to-cylinder block bolts.

2. Carefully pry oil pan from stiffener (upper oil pan). See Fig. 9. Remove oil pump pickup tube and discard gasket. Remove rear main seal-to-stiffener nuts. Remove stiffener mounting bolts in 2 steps, in reverse order of tightening sequence. See Fig. 9. Remove stiffener.

Installation

1. Clean all sealant material from oil pan and stiffener mating surfaces. Apply silicone sealant to stiffener in areas shown and tighten in sequence to specification. See Fig. 9. See, at the end of this article, TORQUE SPECIFICATIONS TABLE.

2. Apply a continuous bead of silicone sealant to oil pan along inside of bolt holes. Install oil pan and tighten to specification. To complete installation, reverse removal procedure. Fill crankcase with oil. Start engine and check for leaks.

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Fig. 9: Stiffener Bolt Tightening Sequence


OVERHAUL

CYLINDER HEAD

Cylinder Head

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Ensure all mating surfaces are clean. Measure cylinder head for warpage. Resurface cylinder head if warpage exceeds .004" (.10 mm). Check manifold contact surface for warpage. Resurface manifold surface, or replace cylinder head if warpage exceeds .004" (.10 mm). Cylinder head minimum thickness is 4.8996-4.9035" (124.45-124.55 mm), replace cylinder head if less than specification.

Valve Springs

Measure free length of valve springs. Check springs for cracks and out-of-square. If any measurement is not within specification, replace valve springs as necessary. See, in this article, VALVES & VALVE SPRINGS table under ENGINE SPECIFICATIONS.

Valve Guide

Measure valve guide height from spring seat to top edge of guide. If valve guide height is not within specification, replace valve guide. See CYLINDER HEAD table under ENGINE SPECIFICATIONS. Measure valve stem-to-guide clearance. If clearance is not within specification, replace valve and/or valve guide. See CYLINDER HEAD table under ENGINE SPECIFICATIONS.

Valve Seat

1. Inspect valve seat for evidence of roughness or pitting at valve contact surface. Reface seat as necessary. Before refacing valve seats, check valve stem-to-guide clearance. If clearance is not within specification, replace components as necessary. See CYLINDER HEAD table under ENGINE SPECIFICATIONS.

2. Ensure valve seat width is within specification. See CYLINDER HEAD table. If servicing valve seats, valves must be serviced or replaced. Valve seat replacement information is not available from manufacturer.

Valves

Measure valve stem diameter at top, middle and bottom of valve stem. If valve stem is not within specification, replace valve. Measure valve head margin. Replace valve if not within specification. See VALVES & VALVE SPRINGS table under ENGINE SPECIFICATIONS.

Seat Correction Angles

Not available from manufacturer.

VALVE TRAIN

Hydraulic Valve Lash Adjuster

Check contact and sliding surfaces of lash adjuster for wear or scratches. Measure lash adjuster diameter and adjuster bore diameter. Calculate adjuster-to-bore clearance. See CYLINDER HEAD table under ENGINE SPECIFICATIONS. Hold lash adjuster between fingers, and press plunger together. If plunger moves, replace lash adjuster.

CYLINDER BLOCK ASSEMBLY

NOTE: Always reface valve seat after replacing valve guide.

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Piston & Rod Assembly

Ensure rod, piston and cap are marked with matching numbers before removing. If removing piston from rod, note rod-to-piston position. Piston must be installed with "F" mark on piston toward front of engine. See Fig. 10.

Fig. 10: View Of Assembled Piston, Rod & Rings


Fitting Pistons

1. To determine if piston-to-cylinder clearance is within specification, piston skirt diameter must be measured at 90-degree angle to piston pin.

2. Piston diameter is measured .650" (16.5 mm) from bottom of lowest oil ring land. See PISTONS

PINS & RINGS table under ENGINE SPECIFICATIONS. Oversize pistons are available in .010" (.25 mm) and .020" (.50 mm).

Piston Rings

NOTE: Inspect cylinder block for oil seepage or leaks. Porosity or sand hole(s) causing oil seepage can occur in casting process. If leak is attributed to porous condition of cylinder block or sand hole(s), block is serviceable using Metallic Plastic (C6AZ-19554-A). DO NOT service cracks with metallic plastic. Follow manufacturer's instructions for servicing cylinder block.

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Inspect piston rings for abnormal wear or breakage. Ensure ring end gap and side clearance are within specification. Refer to PISTONS PINS & RINGS table under ENGINE SPECIFICATIONS. Position piston rings at designated areas. See Fig. 10.

Rod Bearings

1. Ensure connecting rod and cap have matching identification marks. Ensure bearing oil clearance and connecting rod side play are within specification. See CRANKSHAFT MAIN & CONNECTING

ROD BEARINGS and CONNECTING RODS tables under ENGINE SPECIFICATIONS.

2. If any bearing clearance cannot be adjusted to standard specification, grind crankshaft and use undersize bearings. Tighten connecting rod bearing cap nuts to specification. See, at the end of this article, TORQUE SPECIFICATIONS TABLE.

Crankshaft & Main Bearings

1. Ensure main bearing caps are numbered for location. Ensure main bearing journal is within specification. See, in this article, CRANKSHAFT MAIN & CONNECTING ROD BEARINGS

table under ENGINE SPECIFICATIONS. Position crankshaft on "V" blocks. Using a dial indicator, check crankshaft runout. If runout is not within specification, replace crankshaft.

2. If any bearing clearance cannot be adjusted to standard specification, grind crankshaft and use undersize bearings. Tighten main bearing caps in sequence to specification. See Fig. 11. See TORQUE SPECIFICATIONS TABLE at the end of this article.

NOTE: Main bearing caps are numbered 1-5. Arrow on cap points toward front of engine.

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Fig. 11: Main Bearing Cap Bolt Tightening SequenceCourtesy of FORD MOTOR CO.

Thrust Bearing

Check crankshaft end play. Replace thrust bearing if crankshaft end play is not within specification. Refer to, in this article, CRANKSHAFT MAIN & CONNECTING ROD BEARINGS table under ENGINE SPECIFICATIONS. Thrust bearing is center bearing in block. Install thrust bearings with oil groove facing crankshaft cheek.

Cylinder Block

1. Using a feeler gauge and straightedge, inspect cylinder block deck surface for warpage. If not within specification, resurface or replace cylinder block. See CYLINDER BLOCK table under ENGINE SPECIFICATIONS. DO NOT remove more than .006" (.15 mm) material from block deck.

2. Measure cylinder bore out-of-round and taper. If either out-of-round or taper exceeds specification, rebore cylinder for oversize piston. See CYLINDER BLOCK table. If cylinder bore is okay, lightly hone cylinder to a cross-hatch pattern.

LUBRICATION

ENGINE OILING SYSTEM

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Rotor-type oil pump is crankshaft driven and draws oil from oil pan through oil strainer. Oil pump sends oil to oil cooler and filter, where it is directed back to cylinder head and cylinder block. Oil jets, located near crankshaft, aid in distributing oil to pistons. Oil then drains back into oil pan. See Fig. 12.

Crankcase Capacity

Capacity is 3.7 qts. (3.5) with oil filter.

Oil Pressure

With engine at normal operating temperature, oil pressure should be 57-71 psi (4.0-7.1 kg/cm2 ) at 3000 RPM.

Fig. 12: Cross-Sectional View Of Engine Oil Circuit

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OIL PUMP

Removal

Disconnect negative battery cable. Remove timing belt. See TIMING BELT under REMOVAL & INSTALLATION. Remove crankshaft sprocket. Remove A/C compressor with hoses attached and position compressor aside. Remove A/C compressor mounting bracket. Remove oil pan and stiffener. See OIL PANunder REMOVAL & INSTALLATION. Remove oil pump bolts. Remove oil pump and gasket.

Inspection

Measure rotor tip clearance, outer rotor-to-housing clearance and rotor side clearance. Inspect pressure-relief valve spring for breakage or weak spring tension. Measure relief valve spring height. Replace pump assembly if not within specification. See OIL PUMP SPECIFICATIONS table.

Installation

To install, reverse removal procedure using new gaskets. Tighten bolts to specification. See TORQUE

SPECIFICATIONS TABLE at the end of this article.

OIL PUMP SPECIFICATIONS

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

Application In. (mm)

Maximum Outer Rotor-To-Housing Clearance .009 (.21)

Maximum Rotor Side Clearance .005 (.12)

Maximum Rotor Tip Clearance .008 (.20)

Relief Valve Spring Height 1.84 (46.8)

Application Ft. Lbs. (N.m)

A/C Compressor Mounting Bolt 18-26 (24-35)

Alternator Mounting Bolt 27-38 (37-52)

Camshaft Sprocket Bolt 36-45 (49-61)

Connecting Rod Cap Nut

Step 1 16-19 (22-27)

Step 2 Additional 90 Degrees

Crankshaft Sprocket Bolt 116-123 (157-167)

Cylinder Head Bolt (1)

Step 1 8-11 (11-15)

Step 2 13-16 (18-22)



Exhaust Manifold

Bolts 12-17 (16-23)

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ENGINE SPECIFICATIONS

GENERAL ENGINE SPECIFICATIONS

GENERAL SPECIFICATIONS

Nuts 15-21 (20-28)

Flywheel/Flexplate Bolt 71-76 (96-103)

Intake Manifold Nut (2) 14-19 (19-26)

Intake Manifold Support Bolt 27-38 (37-52)

Main Bearing Cap Bolt (3)

Step 1 13-16 (18-22)


Oil Pan Bolt 14-18 (19-25)

Oil Pump-To-Block Bolt 14-18 (19-25)

Spark Plug 11-17 (15-23)

Stiffener Bolt (4) 14-19 (19-26)

Torque Converter Nuts 32-44 (44-60)

Transaxle-To-Engine Bolt (5)

Water Pump Bolt 14-19 (19-26)

INCH Lbs. (N.m)

Camshaft Bearing Cap Bolt (6)

Step 1 35 (4)

Step 2 71 (8)

Step 3 106-124 (12-14)

Oil Pump Cover Bolt 53-71 (6-8)

Oil Strainer Bolt 71-89 (8-10)

Rear Seal Housing Bolt 71-89 (8-10)

Timing Belt Cover Bolt 71-89 (8-10)

Valve Cover 53-62 (6-7)

Water Pump Pulley Bolt 71-89 (8-10)

(1) Tighten in 4 steps in sequence. See Fig. 5.

(2) Tighten in sequence. See Fig. 3.



(5) See Fig. 1 or Fig. 2.

(6) Tighten in 3 steps in sequence. See Fig. 8.

Application Specification

Displacement 122 Cu. In. (2.0L)

Bore 3.27" (83 mm)

Stroke 3.62" (92 mm)

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CRANKSHAFT MAIN & CONNECTING ROD BEARINGS SPECIFICATIONS

CRANKSHAFT MAIN & CONNECTING ROD BEARINGS

CONNECTING RODS SPECIFICATIONS

CONNECTING RODS SPECIFICATIONS

PISTONS PINS & RINGS SPECIFICATIONS

PISTONS PINS & RINGS SPECIFICATIONS

Compression Ratio 9.0:1

Fuel System SFI

Horsepower @ RPM 115 @ 5500

Torque Ft. Lbs. @ RPM 124 @ 3500


Crankshaft End Play

Standard .003-.011 (.08-.28)

Service Limit .012 (.30)

Maximum Runout .0012 (.03)

Main Bearings

Journal Diameter 2.202-2.203 (55.94-55.96)

Journal Out-Of-Round .0001 (.003)

Journal Taper .0002 (.006)

Oil Clearance

Standard .0009-.0020 (.024-.050)


Connecting Rod Bearings



Oil Clearance

Standard

Except No. 3 .0009-.0020 (.024-.050)

No. 3 .0012-.0022 (.030-.056)



Center-To-Center Length 5.23 (132.8)

Maximum Bend (1) .002 (.05)

Piston Pin Bore .7458-.7465 (18.934-18.961)

Side Play

Standard .0043-.0103 (.110-.262)


(1) Maximum bend per 1.97" (50 mm).

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CYLINDER BLOCK SPECIFICATIONS

CYLINDER BLOCK SPECIFICATIONS


Piston

Clearance .0015-.0020 (.039-.052)


Diameter

Standard 3.2659-3.2667 (82.954-82.974)

Oversize

.010" (0.25 mm) 3.2757-3.2765 (83.204-83.224)

.020" (0.50 mm) 3.2856-3.2864 (83.454-83.474)

Pins

Diameter .7470-.7472 (18.974-18.980)

Piston-To-Pin Fit Press Fit

Rings

No. 1 & No. 2

End Gap

Standard .006-.012 (.15-.30)


Side Clearance

Standard .0014-.0026 (.035-.065)


No. 3 (Oil)

End Gap

Standard .008-.028 (.20-.71)



Cylinder Bore

Diameter

Standard 3.2677-3.2685 (83.000-83.019)

Oversize

.010" (0.25 mm) 3.2776-3.2783 (83.250-83.269)

.020" (0.50 mm) 3.2874-3.2881 (83.500-83.519)

Maximum Taper & Out-Of-Round .0004 (.010)

Deck Height 10.67 (271.0)

Maximum Deck Warpage (1) .002 (.05)

(1) Replace cylinder block if material removed is more than .008"(.20 mm).

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VALVES & VALVE SPRINGS SPECIFICATIONS

VALVES & VALVE SPRINGS SPECIFICATIONS

CYLINDER HEAD SPECIFICATIONS

CYLINDER HEAD SPECIFICATIONS


Intake Valves

Face Angle 45°

Head Diameter 1.254-1.266 (31.85-32.15)

Installed Height (1) (2) 1.535-1.555 (39.00-39.50)

Minimum Margin .0433 (1.10)

Minimum Refinish Length 3.6678 (93.41)

Stem Diameter .2350-.2356 (5.970-5.985)

Exhaust Valve

Face Angle 45°

Head Diameter 1.080-1.093 (27.45-27.75)

Installed Height (1) (2) 1.535-1.555 (39.00-39.50)

Minimum Margin .0472 (1.20)

Minimum Refinish Length 3.720 (94.49)

Stem Diameter .2349-.2354 (5.965-5.980)

Valve Springs

Free Length

Standard 1.732 (44.00)

Service Limit 1.437 (36.5)

Maximum Out-Of-Square .061 (1.54)

(1) Valve height is measured from top of installed valve to spring seat.

(2) If valve stem height is 1.791-1.831" (45.5-46.5 mm), shim spring seat with washer to bring within specification. If installed valve height exceeds 1.831" (46.5 mm), replace cylinder head.


Cylinder Head Height 4.8996-4.9035 (124.45-124.55)

Maximum Warpage .004 (.10)

Valve Seats

Valve Seat Angle 45°

Seat Width .035-.051 (.90-1.30)

Valve Guides

Valve Guide I.D. .2366-.2374 (6.010-6.030)

Valve Guide Installed Height .531-.555 (13.5-14.1)

Valve Stem-To-Guide Oil Clearance

Intake .0010-.0024 (.025-.060)

Exhaust .0012-.0026 (.030-.066)

1994 Ford Probe


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CAMSHAFT SPECIFICATIONS

CAMSHAFT SPECIFICATIONS

Valve Lash Adjuster-To-Bore Clearance

Standard .0010-.0025 (.025-.066)

Maximum .0070 (.180)


End Play .003-.008 (.08-.20)



Camshaft Runout .0012 (.030)

Lobe Height

Intake

Standard 1.692 (42.97)


Exhaust

Standard 1.706 (43.34)


Oil Clearance

Standard .0014-.0032 (.036-.081)


1994 Ford Probe


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ford probe

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