42. Valve Rocker Arm and Push Rod Clean and Inspect

Valve Rocker Arm and Push Rods Cleaning and Inspection






1. Mark, sort, and organize the components for assembly.

Important:
Parts that are to be reused must be marked, sorted, and organized for assembly.


2. Clean the components with cleaning solvent.

Caution:
Refer to Safety Glasses Caution in Service Precautions.

3. Dry the components with compressed air.
4. Inspect the valve rocker arm components for the following:
^ Valve rocker arm valve pushrod socket contact surface (1)The contact surface must be smooth with no scoring or excessive wear.
^ Valve rocker arm roller pivot for binding or damage (2)
^ Valve rocker arm valve stem contact surface (3)The contact surface should be smooth with no scoring or excessive wear.
^ Valve rocker arm bolt threads for damage (4)





5. Inspect the valve pushrods for the following:
^ Restriction of the oil passage (1)
^ Wear or scoring of the end contact surfaces (2)The end contact surfaces must be smooth with no scoring or excessive wear.
^ Shaft for bends (3)Roll the valve pushrod on a flat surface to determine if the valve pushrod is bent.





6. Inspect the valve rocker support for excessive wear or damage.