Installation Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Important: Do not stroke/cycle the stationary hydraulic lash adjuster plunger without oil in the lower pressure chamber.

Fill the stationary hydraulic lash adjuster (SHLA) with clean engine oil GM P/N 12378006 or equivalent. Take precautions to prevent scratching the pivot sphere area (1) of the SHLA.

Fig 1: Identifying Pivot Sphere Area
Courtesy of GENERAL MOTORS CORP.
Install the new SHLA's into the bores.
Install the left valve rocker arms. Refer to Valve Rocker Arm Replacement - Left .

Fig 2: Installing New Stationary Hydraulic Lash Adjusters
Courtesy of GENERAL MOTORS CORP.