42. Valve Rocker Arm and Push Rod Cleaning and Inspection

Valve Rocker Arm and Push Rod Cleaning and Inspection





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

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

Caution: Refer to Safety Glasses Caution.

2. Clean the components with cleaning solvent.
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.