TM 5-3805-261-34ENGINE TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONm.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
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