Rocker Arm and Push Rod - Installation
1. Install the valve rocker arm stud.
^ Tighten the valve rocker arm stud to 47 Nm (35 ft. lbs.).
2. Install the pushrod. Ensure that the pushrod seats properly in the valve lifter.
NOTE: When new valve rocker arms or balls are installed, coat the contact surfaces with high viscosity oil with zinc GM P/N 1052367 or the equivalent.
3. Install the valve rocker arm and ball.
4. Install the valve rocker arm nut.
^ Tighten the valve rocker arm nut to 25 Nm (18 ft. lbs.).
5. Install the valve rocker arm cover.