Rocker Arm Assembly: Service and Repair

Valve Rocker Arm and Push Rod Replacement

Special Tools

- J 36660-A Torque Angle Meter

Removal Procedure

1. Remove the valve rocker arm cover(s). Refer to Valve Rocker Arm Cover Replacement Service and Repair.






2. Remove the rocker arm bolt(s).
3. Remove the rocker arm(s).

Important:
- Place the valve train parts in a rack in order to make sure that they are installed in the same location from which they were removed. Intake pushrods measure 144.18 mm (5.68 in) long. Exhaust pushrods measure 152.51 mm (6.0 in) long.
- Use care when removing the pushrods. Make sure that they do not fall down into the lifter valley.

4. Remove the pushrod(s).

Installation Procedure






Important: Coat the bearing surface of the rocker arms, rocker arm bolts, and pushrods with prelube GM P/N 12345501 (Canadian P/N 992704) or equivalent. Install all of the components in their original location.

1. Use the following steps in order to install the pushrod(s).
1.1 Install the intake valve pushrods measure 144.18 mm (5.68 in) long.
1.2 Install the exhaust valve pushrods measure 152.51 mm (6.0 in) long.
2. Install the rocker arm(s).
3. Install the rocker arm bolt(s). Refer to Valve Rocker Arm and Push Rod Installation Valve Rocker Arm and Push Rod Installation.
4. Install the valve rocker arm cover(s). Refer to Valve Rocker Arm Cover Replacement Service and Repair.