TM 10-3930-659-20 Table 4-1.  Mechanical Troubleshooting (Con't). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION WARNING Diesel  fuel  Is  combustible.    DO  NOT  smoke  or  allow  open  flame  near  fuel  tank. Failure to follow this warning will result in death or serious Injury to personnel.  If you are burned, Immediately seek medical aid. Step 7. Check fuel injection pump metering valve for sticking. Lightly tap fuel injection pump housing with a soft hammer.  If engine starts, notify Direct Support Maintenance. Step 8. Inspect cylinder head valve for proper clearance (see paragraph 5-1). Adjust cylinder head valves (see paragraph 5-1). Step 9. Check fuel injection pump static timing (see paragraph 5-26). Adjust fuel injection pump static timing (see paragraph 5-26). If engine still will not remain running, notify Direct Support Maintenance. 3. ENGINE DOES NOT DEVELOP FULL POWER. Step 1. Check for lit engine air filter indicator light. Perform engine power check (see STE/ICE-R Test G06). WARNING Diesel  fuel  is  combustible.    DO  NOT  smoke  or  allow  open  flame  near  fuel  tank. Failure to follow this warning will result in death or serious injury to personnel.  If you are burned, immediately seek medical aid. Step 2. Inspect fuel tank vent line for restrictions. Replace restricted or damaged fuel tank vent line (see paragraph 5-15). Step 3. Inspect fuel filter for presence of water or restrictions. Drain water from fuel filter (see paragraph 5-17). Bleed fuel filter and lines (see paragraph 5-16). Replace damaged fuel filter (see paragraph 5-17). Step 4. Inspect for pinched, twisted, or leaking fuel lines. Replace damaged fuel lines (see paragraph 5-15). 4-10