Valve Rocker Arm and Push Rods Cleaning and Inspection
WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
- Mark, sort, or organize the components for assembly. Refer to Separating Parts .
- Clean the components with cleaning solvent.
- Dry the components with compressed air.
- Inspect the valve rocker arms bearings (2) for binding or roughness.
- Inspect the valve rocker arm pushrod sockets (3) and valve stem mating surfaces (1). These surfaces should be smooth with no scoring or exceptional wear.
- Inspect the pushrods for worn or scored ends. These surfaces should be smooth with no scoring or exceptional wear.
- Inspect the pushrods for bends. Roll the pushrod on a flat surface to determine if the pushrod is bent.
- Inspect the pushrod oil passages for restrictions.
- Inspect the pivot supports for cracks, wear, or other damage.
IMPORTANT:
Parts that are to be used again must be marked, sorted or organized for assembly.
CAUTION:
Refer to Safety Glasses Caution
in Cautions and Notices.