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1.9L 4-CYL - VIN [A], 2.0L TURBO [F], 2.3L 4-CYL [L]

1986 Isuzu Trooper II

1986 ISUZU ENGINES

1.9L, 2.0L Turbo & 2.3L 4-Cylinder

Impulse, P’UP, Trooper II

* PLEASE READ THIS FIRST *

NOTE: For engine repair procedures not covered in this article,

see ENGINE OVERHAUL PROCEDURES - GENERAL INFORMATION article

in the GENERAL INFORMATION section.

ENGINE CODING

ENGINE IDENTIFICATION

Engine may be identified by the eighth character of the

Vehicle Identification Number (VIN). The VIN is stamped on a metal

tab, located on top of instrument panel at lower left of windshield.

Engine serial number is stamped on a machined pad on engine block.

ENGINE IDENTIFICATION CODES TABLE

Application VIN Code

1.9L 4-Cylinder

P’UP & Impulse .............................. A

2.0L 4-Cylinder Turbo

Impulse ..................................... F

2.3L 4-Cylinder

P’UP & Trooper II ........................... L

ENGINE, MANIFOLDS & CYLINDER HEAD

ENGINE

Removal (P’UP & Trooper II)

1) Disconnect battery cables. Scribe hinge positions 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 cleaner

bolts and wing nut. Lift air cleaner to disconnect TCA hose at air

cleaner. Remove air cleaner.

3) Remove intake manifold cover. Disconnect alternator

wiring. Disconnect exhaust pipe from exhaust manifold. Loosen clutch

control cable adjustment nut.

4) Disconnect heater hose to temperature control valve (if

equipped). Disconnect oxygen sensor wiring (if equipped). Disconnect

hose at air switching valve and vacuum switching valve (if equipped).

Disconnect heater hoses at heater core tubes.

5) Disconnect control cable from heater temperature control

valve. Remove control valve (if equipped). Remove left engine mount

nut. Install Engine Hanger (J-26555). Use exhaust manifold studs to

mount hanger.

6) Disconnect engine ground cable. Disconnect fuel hoses at

carburetor. Remove coil high tension wire. Disconnect vacuum hose

from rear of intake manifold. Disconnect canister vacuum hoses (if

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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