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Page Title:
Table 2-1. Direct Support and General Support Troubleshooting Table - continued |
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 TM5-241O-237-34
Table 2-1.
Direct Support and General Support Troubleshooting Table (Cont'd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
13. ENGINE LUBRICATING 0IL AT EXHAUST
Step 1.
Check for too much oil in valve mechanism compartment.
Check if there is a plug in each end of rocker shaft. Install plug(s), if
necessary (page 3-95).
Inspect valve guides (page 3-30).
Step 2.
Replace valve guide that does not meet specifications (page 3-30).
Inspect piston rings (page 3-77).
Step 3.
Replace piston rings, if necessary (page 3-77)0
END OF TESTING!
14. EXCESSIVE EXHAUST SMOKE (BLACK OR GRAY SMOKE )
Step 1.
Check turbocharger for proper operation.
Repair turbocharger, if necessary (page 4-18).
Step 2.
Check for fuel in engine lubricating oil.
a.
If fuel is present, test fuel injection nozzles (page 4-8).
Reinstall
original, good nozzle and replace defective nozzle TM5-241O-237-2O).
b.
Drain engine lubricating oil, install new oil filter, and refill
crankcase (TM5-241O-237-2O).
Step 3.
Check fuel injection timing (page 4-26).
Adjust timing, if necessary (page 4-26).
15. EXCESSIVE EXHAUST SMOKE (WHITE OR BLUE SMOKE)
Step 1.
Check fuel injection timing (page 4-26).
Adjust timing, if necessary (page 4-26).
Step 2.
Inspect piston rings (page 3-77).
Replace piston rings, if necessary
Step 3.
Inspect the cylinder head for worn valve guides (page 3-30).
Repair cylinder head, if necessary (page 3-30).
2-12
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