TM5-6115-585-34
NAVFAC P-8-262-12
TO-35C2-3-455-2
TM-05684C-34
Table 2-3. Troubleshooting (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8. LOW OIL PRESSURE (CONT).
Step 2. Check for worn oil pump (paragraph 7-11).
Replace pump.
Step 3. Check for worn engine bearings (paragraph 7-17).
Replace worn bearings.
9. HIGH OIL PRESSURE
Step 1. Check to see if oil by-pass is stuck closed (paragraph 7-13).
Clean or replace oil by-pass valve and spring.
Step 2. Check for clogged oil passages.
Clean all oil lines and passages.
10. EXCESSIVE OIL CONSUMPTION.
Step 1. Check for worn valve guides (paragraph 7-9).
Replace guides, valves, and seals.
Step 2. Check for worn or sticking piston rings (paragraph 7-10).
Replace rings if necessary.
Step 3. Check for air leaks to crankcase.
Replace gaskets and seals as necessary.
11. BLACK SMOKEY EXHAUST AND EXCESSIVE FUEL CONSUMPTION
Step 1. Check for incorrect timing (paragraph 7-18).
Adjust injection timing if necessary.
Step 2. Check for faulty injection pump or nozzles (paragraphs 7-18 and 7-20).
Repair, overhaul, rebuild, or replace pump and nozzles as necessary.
Step 3. Check valve condition (paragraph 7-9).
Replace worn valves.
12. TAPPING OR CLICKING SOUND FROM CYLINDER HEAD.
Step 1. Check for too great a valve clearance (paragraph 7-9).
Adjust clearance.
Step 2. Check for broken valve spring (paragraph 7-9).
Replace broken springs.
2-8
