GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2009 🢒 G8 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L 🢒 Valve Rocker Arm and Push Rod Replacement

Removal Procedure
  1. Remove the valve rocker arm covers. Refer to Valve Rocker Arm Cover Replacement - Left Side or Valve Rocker Arm Cover Replacement - Right Side.
  2. Remove the valve rocker arm and push rods. Refer to Valve Rocker Arm and Push Rod Removal.
  3. Clean and inspect the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Cleaning and Inspection.

Installation Procedure

    Object Number: 1954179 Size: SH

    Note: 

       • When using the valve train components again, always install the components to the original location and position.
       • Valve lash is net build, no valve adjustment is required.

  1. Lubricate the pushrods (1) with clean engine oil.

    2. Note: Make sure the pushrods (1) seat correctly to the valve lifter sockets.

  2. Install the pushrods (1).

    3. Object Number: 1954178 Size: SH
  3. Install the valve rocker arm pivot support (1).

    4. Object Number: 1954177 Size: SH
  4. Lubricate the valve rocker arms (2) and pushrods with clean engine oil.
  5. Lubricate the flange of the valve rocker arm bolts (1) with clean engine oil.

    6. Note: 

       • Make sure the pushrods seat correctly to the ends of the rocker arms.
       • DO NOT tighten the rocker arm bolts at this time.

  6. Install the rocker arms and rocker arm retaining bolts.

    7. Object Number: 1954180 Size: SH

    Note: The Number 1 piston is at the compression stroke when the Number 6 cylinder inlet and exhaust valves are rocking, that is when the exhaust valve is at the end of its upward travel while the intake valve starts its downward movement.

    Note: The engine firing order is 1-8-7-2-6-5-4-3. Cylinder numbers are 1-3-5-7 are on the left bank and 2-4-6-8 are on the right bank.

  7. Rotate the crankshaft until number one piston is at top dead centre of compression stroke.

    8. Caution: Refer to Fastener Caution in the Preface section.

  8. With the engine in the number one firing position, tighten the following valve rocker arm retaining bolts. Tighten exhaust valve rocker arm retaining bolts 1, 2, 7, and 8 to 30 N·m (22 lb ft). Tighten intake valve rocker arm retaining bolts 1, 3, 4, and 5 to 30 N·m (22 lb ft).
  9. Rotate the crankshaft 360 degrees.
  10. Tighten the following valve rocker arm retaining bolts. Tighten exhaust valve rocker arm retaining bolts 3,  4,  5, and  6 to 30 N·m (22 lb ft). Tighten intake valve rocker arm retaining bolts 2,  6,  7, and  8 to 30 N·m (22 lb ft).
  11. Install the valve rocker arm covers. Refer to Valve Rocker Arm Cover Replacement - Left Side or Valve Rocker Arm Cover Replacement - Right Side.