GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 45059 Angle Meter

For equivalent regional tools, refer to Special Tools.

  1. Ensure the cylinder head locating pins are securely mounted in the cylinder block deck face.

  2. Object Number: 902814  Size: SH
  3. Install a NEW left cylinder head gasket using the deck face locating pins for retention.

  4. Object Number: 902815  Size: SH
  5. Align the left cylinder head with the deck face locating pins.
  6. Place the left cylinder head in position on the deck face.
  7. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 902816  Size: SH

    Note: DO NOT allow oil on the cylinder head bolt bosses.

    Note: DO NOT reuse the old cylinder head bolts.

  8. Install the NEW M11 cylinder head bolts (1) and
  9. 5.1. Tighten the M11 cylinder head bolts a first pass in sequence to 30 N·m (22 lb ft).
    5.2. Tighten the M11 cylinder head bolts a second pass in sequence an additional 150 degrees using the J 45059 meter .
  10. Install the 2 NEW front M8 left cylinder head bolts (2).
  11. 6.1. Tighten the M8 cylinder head bolts a first pass to 15 N·m (11 lb ft).
    6.2. Tighten the M8 cylinder head bolts a second pass in sequence an additional 75 degrees using the J 45059 meter .