GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1227028  Size: SH
  1. Remove the left rocker cover (2). Refer to Valve Rocker Arm Cover Replacement - Left Side .

  2. Object Number: 1226491  Size: SH
  3. Remove the left rocker arm and shaft assembly. Refer to Valve Rocker Arm and Shaft Replacement .
  4. Remove the timing belt. Refer to Timing Belt Replacement .
  5. Remove the coolant bridge. Refer to Engine Coolant Crossover Pipe Replacement in Engine Cooling.
  6. Disconnect the left bank oxygen sensors.
  7. Remove the left cylinder head. Refer to Cylinder Head Removal - Left Side .

Installation Procedure

  1. Install the left cylinder head. Refer to Cylinder Head Installation - Left Side .
  2. Connect the left bank oxygen sensors.
  3. Install the coolant bridge. Refer to Engine Coolant Crossover Pipe Replacement in Engine Cooling.
  4. Install the timing belt. Refer to Timing Belt Replacement .

  5. Object Number: 1226491  Size: SH
  6. Install the left rocker arm and shaft assembly. Refer to Valve Rocker Arm and Shaft Replacement .
  7. Adjust the valve lash. Refer to Valve Rocker Arm and Valve Lash Adjuster Replacement .

  8. Object Number: 1227028  Size: SH
  9. Install the left rocker cover (2). Refer to Valve Rocker Arm Cover Replacement - Left Side .