1998 ISUZU TROOPER Service Repair Manual

Page 1569 of 3573

ISUZU TROOPER 1998  Service Repair Manual ENGINE MECHANICAL 6A Ð 19
ROCKER ARM ASSEMBLY
DISASSEMBLY
1. Rocker Arm Shaft Assembly
2. Rocker Arm Shaft Snap Ring
3. Rocker Arm
4. Rocker Arm Shaft Bracket
5. Rocker Arm
6. Rocker Arm Shaft Spring

Page 1570 of 3573

ISUZU TROOPER 1998  Service Repair Manual 6A Ð 20 ENGINE MECHANICAL
Oil Clearance
1. Use either a vernier caliper or a dial indicator to
measure the rocker arm inside diameter.
2. Measure the rocker arm shaft outside diameter.
If the measure

Page 1571 of 3573

ISUZU TROOPER 1998  Service Repair Manual ENGINE MECHANICAL 6A Ð 21
REASSEMBLY
7. Rocker Arm Shaft
¥ Apply a light coat of engine oil to the rocker arm
shafts.
¥ Position the rocker arm shaft with the large oil
hole (4
f) facing the front

Page 1572 of 3573

ISUZU TROOPER 1998  Service Repair Manual 6A Ð 22 ENGINE MECHANICAL
DISASSEMBLY
1. Flywheel
2. Cylinder Block Rear Plate
3. Crankcase Assembly
¥ Refer to section 6A2 ÒCrankcaseÓ.
4. Oil Pump Assembly
5. Oil Pipe
6. Strainer Assembly
7. Pu

Page 1573 of 3573

ISUZU TROOPER 1998  Service Repair Manual ENGINE MECHANICAL 6A Ð 23
Drive Shaft and Oil Pump Body Clearance
¥ Use a micrometer to measure the drive shaft outside
diameter.
¥ Use an inside dial indicator to measure the pump
body inside diam

Page 1574 of 3573

ISUZU TROOPER 1998  Service Repair Manual 6A Ð 24 ENGINE MECHANICAL
4. Oil Pump Assembly
¥ Apply molybdenum mixed engine oil to drive
gear of camshaft and driven gear of oil pump.
¥ Tighten the oil pump fixing bolt to the specified
torque

Page 1575 of 3573

ISUZU TROOPER 1998  Service Repair Manual ENGINE MECHANICAL 6A Ð 25
CRANKSHAFT
DISASSEMBLY
1. Cylinder Head
·Refer to ÒCylinder headÓ in Section 6A2.
2. Camshaft Timing Gear
·Refer to ÒCamshaftÓ in Section 6A2.
3. Crankshaft Timing Gea

Page 1576 of 3573

ISUZU TROOPER 1998  Service Repair Manual 6A Ð 26 ENGINE MECHANICAL
8. Crankshaft Rear Oil Seal
·With the oil seal pushed in deep, install the special
tool as shown in the illustration and remove the oil
seal.
Oil Seal Remover : 5-8840-2362