Valve Rocker Arm and Push Rods Cleaning and Inspection

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. 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 or organized for assembly

Mark, sort, or organize the components for assembly. Refer to Separating Parts .
Clean the components with cleaning solvent.
CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
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.

Fig 1: Valve Rocker Arm Bearing, Pushrod Socket & Valve Stem Mating Surface
Courtesy of GENERAL MOTORS CORP.
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.

Fig 2: Pushrods
Courtesy of GENERAL MOTORS CORP.
Inspect the pivot supports for cracks, wear, or other damage.

Fig 3: Pivot Supports
Courtesy of GENERAL MOTORS CORP.