Rocker Arm Assembly: Service and Repair

REMOVAL
1. Remove the valve valve cover.
2. Remove the rocker arm bolts.
3. Remove the rocker arms.

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

4. Remove the pushrods.

INSTALLATION

NOTE: Coat the bearing surface of the rocker arms, rocker arm bolts, and pushrods with GM P/N 1052365 or its equivalent. Install all of the components in their original location.

1. Use the following steps in order to install the pushrods.
^ Coat the ends of the pushrods with prelube GM P/N 1052365 or equivalent.
^ The intake valve pushrods measure 144 mm (5.75 inches) long.
^ Exhaust valve pushrods measure 152.5 mm (6.0 inches) long.
2. Install the rocker arms.
3. Install the rocker arm bolt. Tighten the bolt to 14 Nm (124 inch lbs.) plus 30 degrees.
4. Install the valve valve cover.