GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the intake manifold. Refer to Intake Manifold Replacement .
  2. Remove the coolant outlet pipe bolts and pipe.

  3. Object Number: 263965  Size: SH
  4. Remove the balance shaft cover bolts.
  5. Lift the balance shaft cover from the engine valley.
  6. Remove the balance shaft cover gasket. Carefully scrape any remaining gasket material from the cylinder block and cover plate. Refer to Balance Shaft Cover Cleaning and Inspection .

Installation Procedure


    Object Number: 263965  Size: SH
  1. Place the balance shaft cover gasket in position on the cylinder block. Make sure any remaining gasket material is removed from the cylinder block and cover.
  2. Lower the balance shaft cover into the engine valley.
  3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the balance shaft cover bolts.
  5. Tighten
    Tighten the balance shaft cover bolts to 12 N·m (106 lb in).

  6. Install the coolant outlet pipe.
  7. Install the coolant outlet pipe bolts.
  8. Tighten
    Tighten the coolant outlet pipe bolts to 24 N·m (18 lb in).

  9. Install the intake manifold. Refer to Intake Manifold Replacement .