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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 203 (Engine Mechanical - 3.5L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Timing Chain and Sprockets Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Locating Camshaft Thrust Plate
    GM96021Courtesy of GENERAL MOTORS CORP.
  1. If removed, install the camshaft thrust plate.
    2. NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the camshaft thrust plate bolts.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

    3. Fig 2: View Of Crankshaft Sprocket
    GM760405Courtesy of GENERAL MOTORS CORP.
  3. Install the crankshaft sprocket.
  4. Apply engine oil supplement (EOS) GM P/N 1052367 (Canadian P/N 992869) or equivalent, to the sprocket thrust surface.
    5. Fig 3: View Of Timing Chain Dampener & Bolts
    GM59271Courtesy of GENERAL MOTORS CORP.
  5. Install the timing chain dampener.
  6. Install the timing chain dampener bolts.

    Tighten:  Tighten the bolts to 21 N.m (15 lb ft).

    7. Fig 4: Identifying Camshaft Sprocket Bolt
    GM54291Courtesy of GENERAL MOTORS CORP.
  7. Install the timing chain onto the camshaft gear.
    8. Fig 5: View Of Camshaft Sprocket With Timing Chain
    GM190539Courtesy of GENERAL MOTORS CORP.
  8. Hold the camshaft sprocket with the chain hanging down and install the chain to the crankshaft gear.
    9. Fig 6: Aligning The Dowel In The Camshaft With The Dowel Hole In The Camshaft Sprocket
    GM187021Courtesy of GENERAL MOTORS CORP.
  9. Align the crankshaft timing mark (2) to the timing mark on the bottom of the timing chain dampener (1).
  10. Align the timing mark on the camshaft gear, center line of the locator hole (4), with the timing mark on the top of the chain dampener (3).
  11. Align the dowel in the camshaft with the dowel hole in the camshaft sprocket (1).
    12. Fig 7: View Of Camshaft Sprocket Bolt
    GM190538Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Draw the camshaft sprocket onto the camshaft using the mounting bolt.
  12. Install the camshaft sprocket bolt.

    Tighten:  Tighten the bolt to 140 N.m (103 lb ft).

  13. Coat the crankshaft and camshaft sprocket with engine oil.
  14. Install the engine front cover. Refer to Engine Front Cover Replacement .
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