GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 42069 Timing Belt Alignment Kit
    • SA9140E Torque Angle Gage

Removal Procedure


    Object Number: 894187  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the air cleaner assembly.
  3. Remove the front timing belt cover. Refer to Timing Belt Front Cover Replacement .
  4. Remove the timing belt. Refer to Timing Belt Replacement .
  5. Important: As a precaution, rotate the crankshaft counterclockwise to 60 degrees BTDC position to prevent valve/piston contact.

  6. Insert the J 42069 and the J 42069-2 into the appropriate camshaft gears to hold the gears in place while removing the camshaft bolt.

  7. Object Number: 894899  Size: SH
  8. Remove the camshaft gear bolt.
  9. Remove the camshaft gear and discard the camshaft gear bolts.

Installation Procedure


    Object Number: 894693  Size: SH

    Important: Install the alignment pin in the correct, numbered, alignment slot on the camshaft gear.

  1. Install the camshaft gear.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 894187  Size: SH

    Important: Use a new camshaft gear bolt. The required tightening method will stretch the bolts to its yield point, therefore, the bolt is not reusable.

  3. Install the camshaft gear bolt.
  4. • Use the J 42069 and the J 42069-2 to hold the camshaft gear and camshaft in place while tightening the camshaft gear bolt.
    • Use the SA9140E to tighten the camshaft gear bolt.

    Tighten
    Tighten the camshaft gear bolt to 50 N·m (37 lb ft) plus 60 degrees plus 15 degrees.


    Object Number: 894706  Size: SH
  5. Turn the crankshaft clockwise back to TDC.
  6. Install the timing belt. Refer to Timing Belt Replacement .
  7. Install the front timing belt cover. Refer to Timing Belt Front Cover Replacement .
  8. Install the air cleaner assembly.
  9. Connect the negative battery cable.
  10. Tighten
    Tighten the battery terminal bolts to 17 N·m (13 lb ft).