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Isuzu NPR 4J Series User Manual

Isuzu NPR 4J Series
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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
Nm (kgm/lbft)
54 (5.5/40)
6A-16-1.tif
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6A-16-4.tif

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Isuzu NPR 4J Series Specifications

General IconGeneral
BrandIsuzu
ModelNPR 4J Series
CategoryEngine
LanguageEnglish

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