Push Rod: Service and Repair

Valve Rocker Arm and Push Rod Replacement
Removal Procedure
1. Remove the valve rocker arm cover(s).





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

Remove the rocker arm bolt(s).

3. Important: Retain the pushrods in the order that they are removed. Keeping the components in order will ensure installation into the original position.

Remove the valve rocker arm(s) and the pushrod(s).

Installation Procedure





1. Coat the ends of the push rods using prelube GM P/N 12345501 (Canadian P/N 992704) or the equivalent.

2. Important: The intake valve push rods measure 144 mm (5.75 inch) in length, (yellow). The exhaust valve push rods measure 152.5 mm (6.0 inch) in length, (green).

Install the push rods in their original location.





3. Coat the rocker arm friction surfaces using prelube GM P/N 12345501 (Canadian P/N 992704) or the equivalent.

4. Notice: Refer to Fastener Notice in Service Precautions.

Install the valve rocker arm(s) and the bolt(s).
Use the J36660-A to tighten the bolts to 32 Nm (24 ft. lbs.).
5. Install the valve rocker arm cover(s).