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