50. Valve Rocker Arm and Push Rod Cleaning and Inspection

Valve Rocker Arm and Push Rod Cleaning and Inspection

Caution: Refer to Cleaning Solvent Caution.
1. Clean the valve rocker arms and push rods in cleaning solvent.
Caution: Refer to Safety Glasses Caution.
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 (3)-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.


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)