TM 5-3805-261-34
ENGINE TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
m.
LITTLE ROCKER ARM MOVEMENT OR TOO MUCH VALVE CLEARANCE.
Step 1.
Check the valve clearance.
If there is too much valve clearance--adjust. Refer to paragraph 3-12.
Step 2.
Check the lubrication in the valve compartment. There must be a strong flow of oil at a high RPM and
a small flow at a low RPM.
If the oil level is not correct--service. Refer to paragraph 3-13.
Step 3.
Check the face of the rocker arms contacting valve.
If a rocker arm is worn, damaged or defective--replace. Refer to paragraph 3-12.
Step 4.
Check the valve stems.
If a valve stem is worn, damaged or defective--replace. Refer to paragraph 3-13.
Step 5.
Check the push rods.
If the push rods are worn, damaged or defective--replace. Refer to paragraph 3-12.
3-10
