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Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the balance shaft driven gear, if required.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Prevent the balance shaft from rotating and install the balance shaft driven gear bolt.

    Tighten: 

    1. Tighten the balance shaft driven gear bolt to 22 N.m (16 lb ft).
    2. Use the J 45059  to rotate the bolt an additional 70 degrees.

    3. Fig 1: Balance Shaft Driven Gear & Bolt
    GM97868Courtesy of GENERAL MOTORS CORP.
  3. Install the camshaft thrust plate, if required.
  4. Install the camshaft thrust plate bolts, if required.

    Tighten:  Tighten the bolts to 15 N.m (11 lb ft).

    5. Fig 2: Camshaft Thrust Plate & Bolts
    GM190552Courtesy of GENERAL MOTORS CORP.
  5. Install the balance shaft drive gear.
    6. Fig 3: Balance Shaft Drive Gear
    GM97869Courtesy of GENERAL MOTORS CORP.
  6. Align the timing marks on the balance shaft drive gear and the balance shaft driven gear.
    7. Fig 4: Balance Shaft Drive & Driven Gear
    GM97752Courtesy of GENERAL MOTORS CORP.
  7. Install the crankshaft sprocket.
  8. Install the timing chain and the camshaft sprocket.
    9. Fig 5: Camshaft Sprocket & Timing Chain
    GM153596Courtesy of GENERAL MOTORS CORP.
  9. Assemble the timing chain on the sprockets with the timing marks as close together as possible.
    10. Fig 6: Aligning Timing Chain & Sprocket Timing Marks
    GM192708Courtesy of GENERAL MOTORS CORP.
  10. Install the camshaft sprocket bolt.

    Tighten: 

    1. Tighten the camshaft sprocket bolt to 100 N.m (74 lb ft).
    2. Use the J 36660-A to rotate the bolt an additional 90 degrees.

    11. Fig 7: Camshaft Sprocket Bolt
    GM248088Courtesy of GENERAL MOTORS CORP.
  11. Install the timing chain dampener.
  12. Install the timing chain dampener bolt.

    Tighten:  Tighten the bolt to 22 N.m (16 lb ft).

    13. Fig 8: Timing Chain Dampener & Bolt
    GM153593Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Rotate the engine two revolutions and check the timing marks. Ensure that the marks are aligned.
  13. Install the engine front cover. Refer to Engine Front Cover Replacement .
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