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Home >> Buick >> 2009 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 5.3L) >> Repair Instructions - On Vehicle >> Camshaft Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
NOTE: If camshaft replacement is required, the valve lifters must also be replaced.
    Fig 1: View Of Camshaft
    GM1704626Courtesy of GENERAL MOTORS CORP.
  1. Lubricate the camshaft journals and the bearings with clean engine oil.
  2. Install the camshaft sprocket bolt into the camshaft front bolt hole.
    3. CAUTION: After removal, place the cylinder head on 2 wood blocks in order to prevent damage to the sealing surfaces.
  3. Using the bolt as a handle, carefully install the camshaft into the engine block.
  4. Remove the bolt from the front of the camshaft.
    5. Fig 2: Camshaft Retainer & Bolts
    GM1552492Courtesy of GENERAL MOTORS CORP.
    NOTE: The gasket surface on the engine block should be clean and free of dirt or debris.
  5. Install the camshaft retainer (203) and the bolts (204). Install the retainer with the sealing gasket facing the front of the engine block.
    6. Fig 3: Identifying Camshaft Retainer Bolts
    GM1665445Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  6. Tighten the camshaft retainer bolts.

    Tighten: 

    • Tighten the first design hex head bolts (3) to 25 N.m (18 lb ft).
    • Tighten the second design TORX® head bolts (4) to 15 N.m (11 lb ft).

  7. Install the front cover. Refer to Engine Front Cover Installation (without Camshaft Position Actuator) .
  8. Install the oil pan-to-front cover bolts.

    Tighten:  Tighten the bolts to 25 N.m (18 lb ft).

  9. Install the valve lifters. Refer to Valve Lifter Installation (5.3L) .
  10. Install the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Installation .
  11. Install the left and right valve rocker arm covers. Refer to Valve Rocker Arm Cover Installation - Left Side  and Valve Rocker Arm Cover Installation - Right Side .
  12. Install the coolant air bleed pipe. Refer to Engine Coolant Air Bleed Pipe and Hole Cover Installation .
  13. Install the valve lifter oil manifold. Refer to Valve Lifter Oil Manifold Installation .
  14. Install the intake manifold. Refer to Intake Manifold Installation .
  15. Install the coolant pump manifold. Refer to Coolant Pump Manifold Replacement .
  16. Install the water pump. Refer to Water Pump Installation .
  17. Install the left and right exhaust manifolds. Refer to Exhaust Manifold Installation - Left Side  and Exhaust Manifold Installation - Right Side .
  18. Install the oil level indicator. Refer to Oil Level Indicator and Tube Installation .
  19. Install the crankshaft balancer. Refer to Crankshaft Balancer Installation .
  20. Install the engine. Refer to Engine Replacement .
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