ENGINE MECHANICAL
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 3A-45
Inspection
GENERAL
1. Inspect expansion plugs for leakage or damage.
2. Inspect glow plug seats for damage.
1. Inspect injector seats for damage.
2. Inspect all gasket surfaces for deep grooves or pitting.
3. Inspect valve seats for cracks, excessive wear and looseness in counterbore.
4. Inspect valves for cracks, excessive wear or bent stems.
5. Inspect valve springs for discoloration due to excessive heat.
6. Inspect valve guides for cracks or chips.
7. Inspect valve guide bores for seizure marks, carbon deposits or scoring.
8. Inspect valve guide height.
9. Inspect valve spring keepers, retainers and washer for wear, distortion, or cracks.
10. Inspect for melting of aluminum by faulty fuel injectors.
11. Inspect rocker arm support journals for scoring.
12. Inspect rocker arm bushings for excessive wear.
EXPANSION PLUGS
1. Remove expansion plugs if leaking or damaged.
NOTE: These plugs may be removed with a sharp punch, or they may be drilled and pried
out
a
a
75101
a-Expansion Plugs
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