Rocker Arm Assembly: Service and Repair

REMOVAL PROCEDURE





1. Remove the valve rocker arm cover.
2. Remove the valve rocker arm nut.
- If only the pushrod is being replaced, back the valve rocker arm nut off until the valve rocker arm can rotate away from the pushrod.
- Then remove the pushrod.

IMPORTANT: Store used components in order so that they can be reassembled in the same location.

3. Remove the valve rocker arm with the ball.





4. Remove the pushrod.
5. Clean and inspect all parts.
Refer to Valve Rocker Arm and Push Rods Clean and Inspect under Engine Unit Repair.

INSTALLATION PROCEDURE





1. Install the pushrod.

IMPORTANT: When new valve rocker arms and/or balls are installed, coat their bearing surfaces with a high viscosity lubricant containing zinc, such as GM P/N 1052367.

Refer to Valve Rocker Arm and Push Rod Installation under Engine Unit Repair.

2. Install the valve rocker arm with the ball to the rocker arm stud.

IMPORTANT: Make sure the pushrod seats properly in the valve lifter.

3. Install the valve rocker arm nut.
4. Adjust the valve lash. Refer to Valve Lash Adjustment under Engine Unit Repair.
5. Install the valve rocker arm covers.