TM 10-3930-641-20
TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE (CONT)
5. ENGINE CRANKS BUT WILL NOT START OR IS HARD TO START
Step 1. Inspect fuel level.
Add fuel. (See page 2-193.)
Step 2. Inspect fuel filters.
Clean/replace. (See pages 2-183 and 2-186.)
Step 3. Check for bad quality fuel. (Drain small amount and visually check for particles.)
Replace fuel. (See page 2-193.)
Replace fuel filter element. (See pages 2-183 and 2-186.)
Step 4. Check exhaust for white smoke.
Use ether as required.
Check ether system for proper operation.
6. ENGINE DOES NOT DEVELOP FULL POWER
Step 1. See if quality of fuel is bad. (Drain small amount and visually check for particles.)
Replace fuel. (See page 2-193.)
Replace fuel filter element. (See pages 2-183 and 2-186.)
Step 2. Inspect for restriction of air inlet filter.
Replace air filter elements. (See page 2-198.)
Step 3. Inspect for low fuel pressure.
Check fuel filters - clean/replace. (See pages 2-183 and 2-186.)
