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 TM 55-1905-223-24-1
Table 2-2. Troubleshooting-CONT
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
13. Engine Hard to Start or Will Not Start (Exhaust Smoke Present).
STEP 1.
Check if engine cranking speed low (below 150 rpm).
Check air pressure to cranking motor.
STEP 2.
Check if starting motor speed too low with air pressure okay.
Replace starting motor. Refer to para. 2-14.
STEP 3.
Inspect for plugged fuel filter.
Replace fuel filter elements (PMCS Table 2-1, Item 8).
STEP 4.
Check for air in the fuel system.
Check for air in fuel, tighten filter.
STEP 5.
Check for restricted fuel suction line.
Inspect fuel lines.
STEP 6.
Check for intake air system restriction.
Correct restriction.
14. Engine starts but will not keep running.
STEP 1.
Check for air in the fuel system.
Bleed fuel lines, tighten fuel connections, tighten filter.
STEP 2.
Check if marine gear engaged.
Disengage marine gear.
STEP 3.
Check for plugged fuel filter.
Replace fuel filter elements (PMCS Table 2-1, Item 8).
STEP 4.
Check for restricted fuel suction line.
Inspect fuel lines.
STEP 5.
Inspect for contaminated fuel.
Drain and clean fuel tank. Replenish fuel.
STEP 6.
Check if idle speed is low.
Adjust engine idle speed.
STEP 7.
Check if injector cup spray holes plugged.
Replace injectors. Refer to para. 2-31.
STEP 8.
Check that injection timing is set incorrectly.
Adjust injection timing. Refer to para. 2-31.
2-27
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