GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 44221 Camshaft Holding Tool


    Object Number: 637768  Size: SH
  1. Coat the camshaft journals, camshaft journal thrust face, and camshaft lobes with clean engine oil.
  2. Install the exhaust camshaft.
  3. Install the intake camshaft.

  4. Object Number: 748322  Size: SH
  5. Install J 44221 tool with the camshaft flats up and the number 1 cylinder at top dead center.

  6. Object Number: 637767  Size: SH

    Note: Install the same camshaft cap onto the same camshaft journal from which it was removed. The camshaft caps are pin stamped for direction and numerical order.

  7. Install the exhaust camshaft caps.
  8. Install the intake camshaft caps.
  9. Caution: Refer to Fastener Caution in the Preface section.

  10. Install the camshaft cap bolts. Tighten the camshaft cap bolts to 12 N·m (106 lb in).
  11. Remove J 44221 tool .