Isuzu NHR 4J Series, Workshop Manual

Page: 83 / 406

6A – 16 GENERAL ENGINE MECHANICAL
REASSEMBLY
6. Valve Guide
• Apply engine oil to the outside of the valve guide.
Using special tool, drive in a new valve guide from the
rocker arm shaft side.
Valve guide replacer: 9-8523-1212-0
5. Valve Guide Oil Seal
• Using special tool, drive in a new oil seal
Oil special tool, drive in a new oil seal
Oil seal installer: 5-8840-2033-0
4. Valve
• Apply engine oil to the outside of the valve stem.
3. Valve Spring
• Attach the valve seat to the upper spring seat. The
painted area of the valve spring should be facing
downward.
2. Split Collar
• Use a spring compressor to push the valve spring into
position.
• Install the spring seat split collar.
• Set the split collar by tapping lightly around the head of
the collar with a rubber hammer.
Valve spring compressor: 9-8523-1423-0 (J-29760)
1. Rocker Arm Assembly
N ∙ m (kg ∙ m/lb ∙ ft)
54 (5.5/40)
6A-16-1.tif
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