46. Valve Rocker Arm and Push Rod Clean and Inspect
Valve Rocker Arm and Push Rods Cleaning and Inspection1. Caution: Refer to Cleaning Solvent Caution in Service Precautions.
Clean the valve rocker arms and push rods in cleaning solvent.
2. Caution: Refer to Safety Glasses Caution in Service Precautions.
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
4. Important: Keep the push rods in order. The intake and exhaust are different lengths.
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)