For 1990-2009 cars

### Removal Procedure

1. Remove the rocker arms from the left cylinder head. Refer to Valve Rocker Arm Replacement - Left Side.

Important: Do not stroke/cycle the stationary hydraulic lash adjuster (1) plunger without oil in the lower pressure chamber. Do not allow the stationary hydraulic lash adjuster to tip over, plunger down, after the oil fill.

2. Remove the stationary hydraulic lash adjuster (SHLA) from the cylinder head (2).

### Cleaning and Inspection Procedure

1. Inspect the stationary hydraulic lash adjuster (SHLA) in the following areas:

• | A plugged oil passage (1)

• | A scored or worn camshaft follower pivot area (2)

• | A damaged or broken retainer (3)

• | A severely scuffed or worn SHLA body (4).

2. Replace the SHLA as required.

### Installation Procedure

Notice: Ensure each valve lifter is filled with clean engine oil and the valve lifter does not tip over (plunger down) before the installation of the valve lifters. The loss of oil in the valve lifter lower pressure chamber or the dry stroking/cycling of the valve lifter plunger will allow air to travel into the high pressure chamber of the valve lifter. Air in the high pressure chamber of the valve lifter may not be purged causing extensive engine component damage.

1. Fill the stationary hydraulic lash adjuster (SHLA) with clean engine oil. Take precautions to prevent scratching the pivot sphere area of the SHLA.
2. Lubricate the SHLA bores in the cylinder head with clean engine oil.
3. Install the SHLA in the cylinder head (2).
4. Apply a liberal amount of commercially available camshaft/lifter prelube to the SHLA pivot spheres.
5. Install the rocker arms. Refer to Valve Rocker Arm Replacement - Left Side.