47. Valve Rocker Arm and Push Rod Clean and Inspect

Valve Rocker Arm and Push Rods Cleaning and Inspection

Caution: Refer to Cleaning Solvent Caution in Service Precautions.

1. Clean the valve rocker arms and push rods in cleaning solvent.

Caution: Refer to Safety Glasses Caution in Service Precautions.

2. Dry the valve rocker arms and push rods with compressed air.





3. Inspect the valve rocker arms for the following conditions:
^ Excessive wear at the valve contact or push rod socket area (1)
^ A loose or damaged pin (2)
^ A worn or damaged roller bearing (2)
The roller should rotate freely with no binding or roughness.
^ The bolt threads for damage

Important: Keep the push rods in order. The intake and exhaust are different lengths. Exhaust is green, intake is yellow.





4. Inspect the push rods for the following conditions:
^ Straightness using a straight edge (1)
^ Excessive wear on the push rod ends (3)
^ Clogging of the oil passage (2)