GM Service Manual Online
For 1990-2009 cars only

    Object Number: 470897  Size: SH
  1. Install a new valve rocker arm cover gasket if the gasket was removed from the valve rocker arm cover.
  2. Install the valve rocker arm cover.
  3. Install the valve rocker arm cover bolts.

  4. Object Number: 677858  Size: SH

    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.

  5. Tighten the valve rocker arm cover bolts in sequence using two passes.
  6. Tighten

        • Tighten the valve rocker arm cover bolts to 6 N·m (54 lb in) for the first pass.
        • Tighten the valve rocker arm cover bolts to 12 N·m (106 lb in) for the second pass.