Isuzu N-Series. Service manual — part 598
6A1-80 4JB1/4JB1-TC/4JG2/4JH1-TC - ENGINE
10) Parking Brake Cable
11) Propeller Shaft
• Line up reference mark.
Tighten:
• Propeller shaft nuts to 66 N
⋅m (6.7 kg⋅m / 48 lb⋅ft)
• Connect battery ground cable.
4JB1/4JB1-TC/4JG2/4JH1-TC - ENGINE 6A1-81
FLYWHEEL AND PILOT BEARING
Component
Removal
Preparation
• Disconnect battery ground cable.
1. Transmission and Clutch Assembly
1) Transmission
2) Clutch
Above works refer to “ENGINE ASSEMBLY”
Section in this manual.
2. Pilot Bearing
• Remove pilot bearing using remover.
Pilot Bearing Puller: 5-8840-2000-0
Sliding hammer: 5-8840-0019-0
3. Flywheel
• Set the flywheel stopper.
• Loosen flywheel fixing bolts then remove the fly-
wheel.
Installation
1. Flywheel
• Apply engine oil to fixing bolts.
• Tighten the flywheel bolts to the specified torque in
two steps using the Angular Tightening Method.
Follow the numerical order shown in the illustra-
tion.
Legend
1. Transmission and clutch assembly
3. Flywheel
2. Pilot bearing
N6A3344E
N6A3345E
6A1-82 4JB1/4JB1-TC/4JG2/4JH1-TC - ENGINE
Tighten:
• Flywheel bolt to
1st step: 59 N
⋅m (6.0 kg⋅m / 43 lb⋅ft)
2nd step: 60
° — 90°
2. Pilot Bearing
• Install the pilot bearing using installer.
Pilot bearing Installer: 5-8522-0024-0
3. Transmission and Clutch Assembly
1) Clutch
2) Transmission
Above works refer to “ENGINE ASSEMBLY”
Section in this manual.
N6A3112E
N6A3346E
4JB1/4JB1-TC/4JG2/4JH1-TC - ENGINE 6A1-83
CRANKSHAFT AND MAIN BEARINGS
Component
Removal
Preparation
• Disconnect battery ground cable.
• Drain coolant from the radiator and engine.
1. Transmission and Clutch Assembly
1) Transmission
2) Clutch
Above works refer to “ENGINE ASSEMBLY”
Section in this manual.
2. Engine Assembly
1) Radiator assembly
Legend
1. Transmission and clutch assembly
9. Piston and connecting rod assembly
2. Engine assembly
10. Front oil seal
3. Cylinder head assembly and gasket
11. Timing gear housing
4. Timing gear (Gear drive model)
12. Timing pulley housing
5. Timing belt (Belt drive model)
13. Water pump assembly
6. Oil pan assembly
14. Flywheel and rear plate
7. Oil pump assembly
15. Rear oil seal
8. Piston cooling oil pipe
16. Crankshaft and main bearing
N6A3347E
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