TM 9-6115-604-34
NAVFAC P-8-633-34
Table 2-3. Engine Troubleshooting (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
ENGINE RUNS ERRATICALLY OR MISFIRES (CONTINUED).
Step 3.
Check cylinder head assemblies and gasket in accordance with paragraphs 9-4 through 9-9.
Repair or replace as necessary.
Step 4.
Check injector operation in accordance with paragraph 6-17.
Repair or replace as necessary.
Step 5.
Check gear pump on fuel pump for worn gears in accordance with paragraph 6-10.
Repair or replace as necessary.
Step 6.
Check camshaft lobes for wear in accordance with paragraph 9-15.
5.
ENGINE EXHAUST EXCESSIVELY BLACK.
Step 1.
Remove and inspect injectors in accordance with paragraph 6-15 and test in accordance with
paragraph 6-17.
Repair or replace as necessary.
Step 2.
Check fuel pump for proper calibration in accordance with paragraph 6-11.
Calibrate.
Step 3.
Check cylinder head assemblies and gasket in accordance with paragraphs 9-4 through 9-9.
Repair as necessary.
Step 4.
Check camshaft lobes for wear in accordance with paragraph 9-15.
Replace as necessary.
Step 5.
Check the aftercooler for clogging or defects in accordance with paragraph 9-42.
Repair or replace as necessary.
6.
ENGINE EXHAUST EXCESSIVELY WHITE OR BLUE.
Step 1.
Check and test injectors in accordance with paragraph 6-17.
Repair and adjust as necessary.
Step 2.
Check camshaft and bushings for wear in accordance with paragraphs 9-15 and 9-16.
Replace parts as necessary.
Step 3.
Check cylinder head assemblies and gasket in accordance with paragraphs 9-4 through 9-9.
Repair or replace as necessary.
Step 4.
If oil consumption is high, check for worn rings or liners by removing the exhaust manifolds and
checking for oily or carboned parts in accordance with paragraph 9-12.
Repair as necessary.
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