Isuzu NHR 4J Series, Workshop Manual

Page: 124 / 406

GENERAL ENGINE MECHANICAL 6A – 57
7. Piston Cooling Oil Pipe
8. Piston and Connecting Rod
9. Flywheel
10. Cylinder Block Rear Plate
11. Crankshaft Rear Oil Seal
12. Main Bearing Cap
13. Crankshaft
14. Camshaft
15. Tappet
16. Cylinder Block
INSPECTION AND REPAIR
Make the necessary adjustments, repairs, and part
replacements if excessive wear or damage is discovered
during inspection.
1. Remove the gasket and any other material adhering
the upper surface of the cylinder block.
Be very careful not to allow any material to accidental
drop into the cylinder block.
Be very careful not to scratch the cylinder block.
2. Carefully remove the oil pump, Rear Seal retainer and
oil pan installation surface seal.
3. Wipe the cylinder block clean.
Cylinder Liner Projection Inspection
1. Hold a straight edge
!
along the top edge of the
cylinder liner to be measured.
2. Use a feeler gauge
"
to measure each cylinder line
projection.
The difference in the cylinder liner projection height
between any two adjacent cylinders must not exceed
0.03 mm (0.0012 in).
Standard mm (in)
0.0 - 0.1 (0.0000 - 0.0039)
Flatness
1. Remove the cylinder body dowel.
2. Set the cylinder liner remover to the cylinder liner.
3. Check that the remover shaft ankle is firmly gripping
the cylinder liner bottom edge.
4. Slowly turn the remover shaft handle counterclockwise
to pull the cylinder liner free.
Cylinder Liner Remover Ankle: 5-8840-2304-0 (4JG2)
5-8840-2039-0
(4JB1/4JB1T/4JB1TC)
NOTE:
Take care not to damage the cylinder body upper
during the cylinder liner removal procedure.
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