Isuzu N-Series. Service manual — part 320
6A-22 ENGINE MECHANICAL
Reassembly
1. Rocker Arm Shaft
1) Use compressed air to thoroughly clean the
rocker arm shaft oil holes.
2) Apply a coat of engine oil to the rocker arm
shaft.
3) Install the rocker arm shaft with the “Front”
mark facing up and toward the front of the en-
gine.
2. Camshaft Bracket
Install the camshaft bracket to the rocker arm shaft
and temporarily tighten the camshaft bracket fixing
bolt as shown in the illustration.
3. Rocker Arm
Apply engine oil to the rocker arm bushing and the
roller pin and then install it to the rocker arm shaft.
4. Spring
Insert the spring end into the rocker arm.
Legend
A. Front mark
4. Spring
1. Rocker arm shaft
5. Rocker arm bracket
2. Camshaft bracket
6. Valve cap
3. Rocker arm
N6A0158E
N6A0159E
N6A0160E
ENGINE MECHANICAL 6A-23
5. Rocker Arm Bracket
6. Camshaft Bracket
Temporarily tighten the camshaft bracket fixing
bolt.
7. Valve Cap
8. Rocker Arm Shaft Assembly
Above works refer to “CYLINDER HEAD” section
in this manual.
N6A0161E
N6A0162E
6A-24 ENGINE MECHANICAL
OIL PUMP
Component
Disassembly
1. Power Steering Pump Idle Gear Cover
2. Power Steering Pump Idle Gear
Legend
1. Power steering pump idle gear cover
7. Cotter pin
2. Power steering pump idle gear
8. Spring seat
3. Flywheel housing
9. Oil relief valve spring
4. Idle gear A
10. Oil relief valve
5. Oil pump assembly
11. Pump cover
6. Driven gear and shaft
N6A0163E
ENGINE MECHANICAL 6A-25
3. Flywheel Housing
Notice:
Be careful not to fail to remove the bolts shown in the il-
lustration.
4. Idle Gear A
5. Oil Pump Assembly
6. Driven Gear and Shaft
N6A0164E
N6A0165E
N6A0166E
N6A0167E
N6A0175E
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