Rocker Arm Assembly: Service and Repair

Valve Rocker Arm and Push Rod Replacement

Tools Required
- J 36660-A Torque Angle Meter

Removal Procedure

1. Remove the valve rocker covers. Refer to Valve Rocker Arm Cover Replacement - Left Side 9. Valve Rocker Arm Cover Removal - Left and Valve Rocker Arm Cover Replacement - Right Side 10. Valve Rocker Arm Cover Removal - Right.






Important: Keep the components separated in order to install the components in the same location.

2. Remove the rocker arm bolts.
3. Remove the rocker arms.

Important: Keep the pushrods in order in order to install the pushrods in the original position.

4. Remove the pushrods.

Installation Procedure






1. Install the pushrods in the original location.
- Coat the ends of the pushrods and the bearing surfaces of the rocker arms with GM P/N 12345501 or GM P/N 88862586 (Canadian P/N 992704 or Canadian P/N 88862586) or the equivalent.
- The intake pushrods are identified with yellow stripes and are 5 3/4 inches long.
- Exhaust pushrods are identified with green stripes and are 6 inches long.
- Ensure that the pushrods seat in the lifter.
2. Install the rocker arms.
3. Install the rocker arm bolts. Refer to Valve Rocker Arm and Push Rod Installation 78. Valve Rocker Arm and Push Rod Installation.
4. Install the valve rocker covers. Refer to Valve Rocker Arm Cover Replacement - Left Side 81. Valve Rocker Arm Cover Installation - Left and Valve Rocker Arm Cover Replacement - Right Side 82. Valve Rocker Arm Cover Installation - Right.