TM 5-6115-584-34
NAVFAC
Table 2-3. Troubleshooting (Cont)
MALFUNCTION
TEST OR INSPECTION
TION
4. STARTER WILL NOT ENGAGE FLYWHEEL.
Step 1. Check starter clutch (bendix) and pinion (paragraph 5-2).
Repair or replace as necessary.
Check for damaged ring gear (paragraph 7-4).
Replace ring gear if necessary.
5. ENGINE WILL NOT START WHEN CRANKED.
Step 1.
Step 2.
Step 3.
Check for faulty injection caused by dirty fuel.
Replace with clean fuel. Service fuel filters. Clean and
necessary repair or
replace fuel injection nozzle (paragraph 7-20).
Check for poor compression.
See malfunction 14.
Incorrect timing.
Retime engine (paragraph 7-18).
6. ENGINE MISFIRES.
Step 1.
Step 2.
Step 3.
Step 4.
7. LOW ENGINE
Step 1.
Step 2.
Check for poor compression.
See malfunction 14.
Check for defective or dirty injection nozzles (paragraph 7-20).
Clean or replace nozzles.
Check for broken valve spring (paragraph 7-9).
Replace broken springs.
Check cylinder head assembly for build-up of carbon (paragraph 7-9).
Clean carbon from cylinder head assembly.
POWER.
Check for poor compression.
See malfunction 14.
Check for incorrect timing.
Adjust injection timing if necessary (paragraph 7-18).
8. LOW OIL PRESSURE.
Step 1. Check to see if oil by-pass is stuck open (paragraph 7- 13).
Clean or replace oil by-pass valve and spring.
2-7
