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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1021 (Engine Mechanical - 8.1L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Camshaft Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the grille. Refer to Grille Replacement (GMC) or Grille Replacement (Chevrolet) in Exterior Trim.
  2. Remove the air conditioning (A/C) condenser. Refer to Condenser Replacement in Heating, Ventilation and Air Conditioning.
  3. Remove the valve lifters. Refer to Valve Lifter Replacement .
  4. Remove the timing chain and sprocket. Refer to Timing Chain and Sprockets Replacement .
  5. Remove the camshaft retainer bolts.
  6. Remove the camshaft retainer.
    7. Fig 1: View Of Camshaft Retainer
    GM470998Courtesy of GENERAL MOTORS CORP.
  7. Install three 8 - 1.25 x 100 mm bolts into the camshaft front bolt holes.
  8. Using the bolts as a handle, carefully rotate and pull the camshaft out of the engine block.
    9. Fig 2: View Of Bolts In Camshaft Front Bolt Holes
    GM471002Courtesy of GENERAL MOTORS CORP.
  9. Remove the bolts from the front of the camshaft.
  10. Clean and inspect the camshaft. Refer to Camshaft and Bearings Cleaning and Inspection .
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