1998 ISUZU TROOPER Service Repair Manual

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Page 1001 of 3573

ISUZU TROOPER 1998 Service Repair Manual 6A±45
ENGINE MECHANICAL
Apply sealant (TB1207B or equivalent) to the oil
pump mounting surface.
The oil pump assembly must be installed within 5
minutes after sealant application before the sealant

Page 1002 of 3573

ISUZU TROOPER 1998 Service Repair Manual 6A±46
ENGINE MECHANICAL
Tighten fixing bolts to the specified torque.
Torque : 25 N´m (2.5 Kg´m/18 lb ft)
013RW003
013RW002
13. Install timing belt.
Refer to installation procedure for Timing Bel

Page 1003 of 3573

ISUZU TROOPER 1998 Service Repair Manual 6A±47
ENGINE MECHANICAL
Rear Oil Seal
Removal
1. Remove transmission assembly.
Refer to removal procedure for Transmission
section in this manual.
2. Remove flywheel.
3. Remove rear oil seal using a

Page 1004 of 3573

ISUZU TROOPER 1998 Service Repair Manual 6A±48
ENGINE MECHANICAL
Engine Assembly
Removal
035RW027
1. Disconnect battery ground and positive cable.
2. Remove battery.
3. Make alignment mark on the engine hood and hinges
before removal in ord

6A±48
ENGINE MECHANICAL
Engine Assembly
Removal
035RW027
1. Disconnect battery ground and positive cable.
2. Remove battery.
3. Make alignment mark on the engine hood and hinges
before removal in order to return the hood to original
position exactly.
4. Remove engine hood.
5. Drain radiator coolant.
6. Disconnect accelerator cable and automatic cruise
control cable from throttle valve on common
chamber.
7. Disconnect air duct with air cleaner cover.
8. Remove air cleaner assembly.
9. Disconnect canister vacuum hose.
10. Disconnect vacuum booster hose.
11. Disconnect three engine harness connectors.
12. Disconnect harness connector to transmission (left
front side of engine compartment), disconnect shift
on the fly harness connector from front side of front
axle and remove transmission harness bracket from
engine left side.
13. Disconnect ground cable between engine and frame.
14. Disconnect bonding cable connector on the back of
right dash panel.
15. Disconnect bonding cable terminal on the left bank.
16. Disconnect starter harness connector from starter.
17. Disconnect generator harness connector from
generator.
18. Disconnect coolant reserve tank hose from radiator.
19. Remove radiator upper and lower hoses.
20. Remove upper fan shroud.
21. Remove cooling fan assembly four fixing nuts, then
the cooling fan assembly.
22. Move drive belt tensioner to loose side using wrench
then remove drive belt.23. Remove power steering pump fixing bolts, then
power steering pump. Place the power steering pump
along with piping on the body side.
24. Remove air conditioning compressor fixing bolts from
bracket and place the compressor along with piping
on the body side.
25. Remove O
2 sensor harness connectors from exhaust
front pipe.
26. Remove three exhaust pipe fixing nuts from each
bank.
27. Remove two exhaust pipe fixing nuts from each
exhaust pipe, then move exhaust pipe to rear side of
vehicle.
28. Remove flywheel dust covers.
29. Disconnect two heater hoses from engine.
30. Disconnect fuel hoses from right side of transmission.
CAUTION: Plug fuel pipes on engine side and fuel
hoses from fuel tank.
31. Remove transmission assembly. Refer to
Transmission section in this manual.
32. Support the engine by engine hoist.
33. Remove two left side engine mount fixing bolts from
engine mount on chassis side.
34. Remove two right side engine mount fixing bolts from
engine mount on chassis side.
35. Remove engine assembly.
Installation
CAUTION: W h e n assembling the engine and
transmission, confirm that dowels have been
mounted in the specified positions at the engine
side. Take care that dowel positions are different
between the manual transmission and the automatic
transmission.

Page 1005 of 3573

ISUZU TROOPER 1998 Service Repair Manual 6A±49
ENGINE MECHANICAL
If the engine is assembled in the condition that the
dowels have not been mounted in the specified posi-
tions, the transmission may be damaged the trans-
mission.
012RS009
1.

Page 1006 of 3573

ISUZU TROOPER 1998 Service Repair Manual 6A±50
ENGINE MECHANICAL
9. Install air conditioner compressor to engine and
tighten to the specified torque.
Torque :
M8 bolts : 22 N´m (2.2 Kg´m/16 lb ft)
M10 bolts : 43 N´m (4.4 Kg´m/32 lb ft)

Page 1007 of 3573

ISUZU TROOPER 1998 Service Repair Manual 6A±51
ENGINE MECHANICAL
If it does not reach the stopper screw, repeat from
step 1.
130RW004
Legend
(1) Clearance
(2) Lock Nut
(3) Adjusting Nut

Page 1008 of 3573

ISUZU TROOPER 1998 Service Repair Manual 6A±52
ENGINE MECHANICAL
Cylinder Head
Cylinder Head and Associated Parts
011RW008
Legend
(1) Spark Plug
(2) Cylinder Head Bolt
(3) Camshaft Drive Gear Pulley Fixing Bolt
(4) Camshaft Drive Gear Pulle

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