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equipped). Disconnect accelerator control cable from carburetor.

         7) Disconnect starter motor wiring. Disconnect temperature

sensor, oil pressure switch and distributor wiring. Disconnect hose

at vacuum switch (if equipped). Disconnect temperature switch and

ground wire from rear of intake manifold (if equipped).

         8) Disconnect hose from solenoid valve (if equipped).

Disconnect EFE heater wiring, carburetor solenoid and choke wiring.

Disconnect back-up light switch and transmission switch wiring at

rear of engine.

         9) Disconnect ECS hose from engine oil pan (if equipped).

Remove right engine mount nut. Raise engine slightly and remove left

engine stop plate. On 4WD models, separate engine from transmission.

         10) Discharge A/C system and disconnect A/C compressor lines

(if equipped). Disconnect radiator hoses, fan shroud, radiator and

fan blade assembly. Remove gearshift lever assembly from passenger

compartment. Remove parking brake cable return spring. Disconnect

parking brake cable.

         11) Remove drive shaft. Remove clutch cable return

spring. Disconnect clutch cable and remove cable from engine holder.

Remove front exhaust pipe bracket from transmission. Disconnect side

exhaust pipes. Remove front pipe.

         12) Disconnect speedometer cable. Raise engine slightly.

Remove rear engine mount bolts. On 4WD models, remove engine from

vehicle. On all other models, remove engine and transmission from

vehicle.

         Installation

         To install, reverse removal procedure.

         Removal (Impulse)

         1) Disconnect battery cables. Disconnect relay box cables

(if equipped). Disconnect headlight drive motor wiring. Remove hood

strut. Scribe hinge positions on hood and remove hood. Remove lower

engine cover. Drain crankcase oil and cooling system. Remove lower

and upper radiator hoses. Disconnect transmission oil cooler line (if

equipped).

         2) Discharge A/C system. Disconnect receiver-drier line.

Disconnect A/C compressor line at condenser. Remove A/C compressor

and set aside. Remove air duct-to-cylinder head cover/turbocharger

(if equipped). Remove throttle body/intercooler air duct hose (if

equipped). Disconnect accelerator cable at throttle body. On turbo

models, disconnect air duct-to-intercooler hose.

         3) Disconnect injection pipe-to-pressure regulator hose.

Disconnect fuel hose from fuel injection line at rear of engine.

Disconnect canister purge hoses from vacuum chamber and at 3-way

connector. Disconnect vacuum switching valve hoses from vacuum

chamber and at 3-way connector.

         4) Disconnect wiring from fender skirt to cylinder head.

Remove coil high tension wire. On models with digital instrument

panel, disconnect boost sensor wiring and vacuum hose.

         5) Disconnect oil pressure sending unit, oil pressure switch

and coolant temperature sensor wiring. Disconnect knock sensor and

I-TEC wiring. Disconnect crankshaft position sensor wiring at

distributor. Disconnect starter wiring and engine-to-rear crossmember

ground cable.

         6) Remove right engine mount nut. Remove air intake duct at

front of engine. Remove radiator reservoir hose. Disconnect

alternator and oxygen sensor wiring. Disconnect cruise

control-to-vacuum chamber hose. Disconnect automatic transmission

control wiring (if equipped).

         7) Disconnect power brake unit vacuum hose from intake

manifold. Disconnect heater hoses. Remove heat shield from left

engine mount and remove mount bolt. Disconnect power steering lines.

Содержание Trooper II 1986

Страница 1: ...s on hood Remove hood Remove lower engine cover Drain crankcase oil and cooling system 2 Disconnect PCV hose from air cleaner Disconnect hose from air injection pump Remove air cleaner duct Remove air...

Страница 2: ...emove hood strut Scribe hinge positions on hood and remove hood Remove lower engine cover Drain crankcase oil and cooling system Remove lower and upper radiator hoses Disconnect transmission oil coole...

Страница 3: ...e Drain cooling system Disconnect top radiator hose Remove A C compressor and bracket if equipped Disconnect EGR pipe from rear of intake manifold Disconnect throttle body cable wiring fuel and vacuum...

Страница 4: ...oil pump sprocket 2 Start with outer nuts and work inward to loosen camshaft brackets Remove camshaft brackets and nuts Remove cylinder head to front cover bolts Starting with outer bolts and working...

Страница 5: ...Fig 2 Cylinder Head Tightening Sequence 2 3L 2 0 Turbo Courtesy of Isuzu Motor Co Fig 3 Cylinder Head Tightening Sequence 1 9L Courtesy of Isuzu Motor Co CAMSHAFT ENGINE FRONT COVER...

Страница 6: ...il Pump for Front Cover Installation on 1 9L Models Courtesy of Isuzu Motor Co 2 Position No 1 and 4 pistons on TDC Install front cover by engaging pinion gear with oil pump drive gear on crankshaft E...

Страница 7: ...chain links See Fig 5 3 Length of chain should be 15 381 mm If length exceeds 15 5 32 385 mm replace chain Check chain tensioner tensioner guide pins guide rail and chain guide for wear Replace as ne...

Страница 8: ...and move pulley toward water pump Remove timing belt Remove tension pulley and spring Remove crankshaft timing pulley and guide plate 2 Secure camshaft sprocket and remove camshaft sprocket nut Remove...

Страница 9: ...y replace pump 2 Install oil pump sprocket Install camshaft guide plate and camshaft sprocket Hold sprocket stationary and tighten mounting bolt Install crankshaft timing sprocket with keyway at 12 o...

Страница 10: ...Fig 7 Aligning Timing Belt Sprockets on 2 0L 2 3L Models Courtesy of Isuzu Motor Co CAMSHAFT...

Страница 11: ...haft 3 Place camshaft on V blocks and check runout at center journal If runout exceeds 004 10 mm replace camshaft A slight amount of runout can be corrected with a press DO NOT apply heat Installation...

Страница 12: ...shaft assembly on cylinder head Align camshaft mark with mark on No 1 rocker arm shaft bracket On turbo models apply silicon gasket material to No 1 rocker arm bracket mounting surface on cylinder hea...

Страница 13: ...top of spring and square If spring is more than 0827 2 100 mm out of square replace spring Installation Lubricate valve stem and lower spring seat Install lower spring seat Slide new seal over valve...

Страница 14: ...caps Install a piece of hose over rod bolts Using a wooden hammer handle push piston and connecting rod out top of engine block Installation Apply clean engine oil to bearings and piston rings On 1 9L...

Страница 15: ...st be within 0018 0026 046 066 mm If clearance exceeds specifications replace pistons 2 Measure weight of piston and rod assemblies Variation in weight between assemblies must not exceed 42 oz 12 gram...

Страница 16: ...ize 1st Compression Ring 100 2nd Compression Ring 100 Oil Control Ring Yellow Fig 9 Piston Ring Gap Spacing Courtesy of Isuzu Motor Co NOTE Lower side rail and second compression ring share same gap p...

Страница 17: ...n crankshaft while noting runout If runout exceeds 004 10 mm replace or correct crankshaft Standard runout is 001 03 mm or less 4 Lubricate engine bearings Install main bearing caps with arrow pointin...

Страница 18: ...ead provides lubrication for camshaft Timing chain and sprockets are lubricated by oil spray from oil jet located on chain guide CRANKCASE CAPACITY Impulse Oil capacity is 5 28 quarts 5 0L on 1 9L mod...

Страница 19: ...clearance is greater than 006 15 mm on 2 0L and 2 3L models or 008 20 mm on 1 9L models 3 Inspect relief valve spring for wear weakness or damage Check oil pump body cover and drive gear for wear cra...

Страница 20: ...ure that alignment mark is facing to the rear and approximately 20 degrees in a clockwise direction away from crankshaft See Fig 12 3 Ensure that mark on drive gear is facing rear of engine with oil p...

Страница 21: ...ING WATER PUMP Removal Disconnect negative battery cable Remove lower cover and drain cooling system Remove fan belts Remove fan and fan pulley Remove air pump drive pulley Remove water pump Installat...

Страница 22: ...olts 18 24 Front Pulley Boss Bolt 87 118 Intake Manifold 16 22 Main Bearing Caps 72 98 Oil Pump Sprocket 58 79 Oxygen Sensor 2 0L 2 3L 33 45 1 9L 18 24 Rocker Arm Shaft Brackets 2 16 22 Rear Oil Seal...

Страница 23: ...lacement Cu In 138 Liters 2 3 Fuel System 1 x 2 Bbl HP RPM 96 4600 Torque Ft RPM 128 2200 Compr Ratio 8 3 Bore In mm 3 52 83 9 Stroke In mm 3 54 90 Trooper II Displacement Cu In 138 Liters 2 3 Fuel Sy...

Страница 24: ...0015 0031 038 079 Valve Lift PISTONS PINS RINGS SPECIFICATIONS PISTONS PINS RINGS SPECIFICATIONS TABLE Application In mm 1 9L Pistons Clearance 0018 0026 045 065 Pins Piston Fit 0002 0004 006 011 Rod...

Страница 25: ...5 48 940 Clearance 0007 0029 019 075 Side Play 008 013 02 33 VALVE SPRING SPECIFICATIONS VALVE SPRING SPECIFICATIONS TABLE Application In mm 1 9L 2 0L 2 3L Free Length 1 8951 48 1 Pressure Lbs In Kg m...

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