TM 5-3805-261-34
ENGINE TROUBLESHOOTING AND MAINTENANCE PROCEDURES.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
j.
MECHANICAL NOISE IN ENGINE.
Step 3.
Check the crankshaft.
If the crankshaft is damaged or defective--contact General Support.
k.
FUEL CONSUMPTION IS TOO HIGH.
Step 1.
Check the fuel injection nozzles.
If the fuel injection nozzles are damaged or defective--service or replace. Refer to paragraph 3-24.
Step 2.
Check the fuel injection timing.
If the fuel injection timing is not correct--adjust. Refer to paragraph 3-27.
1.
LOUD NOISE FROM VALVES OR VALVE DRIVE COMPONENTS.
Step 1.
Check the valve springs.
If the valve springs are damaged or defective--replace. Refer to paragraph 3-13.
Step 2.
Check the valve lifter.
If the valves are not moving freely--replace valve lifters. Refer to paragraph 3-12.
Step 3.
Check the valves.
If the valves are damaged or defective--replace. Refer to paragraph 3-12.
Step 4.
Check the camshaft.
If you suspect a problem with the camshaft--contact General Support.
3-9
