Valve Rocker Arm and Push Rods Cleaning and Inspection

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

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

Mark, sort, and organize the components for assembly.
CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
Clean the components with cleaning solvent.
Dry the components with compressed air.
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)
  
  Fig 1: Cleaning and Inspecting Valve Rocker Arm & Push Rods
  Courtesy of GENERAL MOTORS CORP.
- 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)
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.
  
  Fig 2: Inspecting Valve Pushrods
  Courtesy of GENERAL MOTORS CORP.
Inspect the valve rocker support for excessive wear or damage.

Fig 3: Inspecting Valve Rocker Support
Courtesy of GENERAL MOTORS CORP.