Valve Rocker Arm and Push Rod Installation

Tools Required 

J 36660-A  Torque Angle Meter

1. Install the lower intake manifold gaskets.
   NOTE: When replacing lower intake manifold gasket, a revised intake manifold gasket has been introduced by manufacturer. This new design gasket helps resolve issues related to intake manifold oil/coolant leaks. The gasket requires a revised torque specification and procedure in addition to the use of NEW revised intake manifold bolts. Please review TSB ENGINE OIL OR COOLANT LEAK (INSTALL NEW INTAKE MANIFOLD GASKET) for complete information.
   Fig 1: Lower Intake Manifold Gaskets

   Courtesy of GENERAL MOTORS CORP.
2. Coat the ends of the push rods using prelube GM P/N United States 1052367, GM P/N Canada 992869 or the equivalent.

   Important:  The intake valve push rods measure 146.0 mm (5.75 in) in length, (yellow).

Fig 2: Push Rods
Courtesy of GENERAL MOTORS CORP.
3. Install the push rods in their original location.

   The exhaust valve push rods measure 152.5 mm (6.0 in) in length, (green).

4. Coat the rocker arm friction surfaces using prelube GM P/N United States 1052367, GM P/N Canada 992869 or the equivalent.

   Important:  Shims may be required under the valve rocker arm pedestals if reconditioning has been performed on the cylinder head or its components.

Fig 3: Valve Rocker Arm
Courtesy of GENERAL MOTORS CORP.
5. Install the valve rocker arms in their original positions.
   NOTE: Refer to FASTENER NOTICE .
6. Install the valve rocker arm bolts.

   Tighten 

   Use the J 36660-A  to tighten the valve rocker arm bolts to 19 N.m (14 lb ft) plus 30 degrees.