47. Valve Rocker Arm and Push Rod Clean and Inspect
Valve Rocker Arm and Push RodsCleaning and Inspection
Important: Parts that are too be reused must be marked, sorted, and organized for assembly.
^ Mark, sort, and organize the components for assembly.
Caution: Refer to Cleaning Solvent Caution in Service Precautions.
Caution: Refer to Safety Glasses Caution in Service Precautions.
^ Clean the components with cleaning solvent.
^ Dry the components with compressed air.
^ Inspect the valve rocker 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.
^ 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.