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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1443 (Engine Mechanical - 4.2L (Ll8)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Camshaft Replacement >> Removal Procedure

Removal Procedure

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  1. Remove the camshaft cover. Refer to Camshaft Cover Replacement  .
  2. Remove the intake and the exhaust camshaft sprocket bolts.
    3. Fig 1: View Of J 44222 Installed Onto Cylinder Head
    GM760724Courtesy of GENERAL MOTORS CORP.
  3. Install the J 44222  onto the cylinder head and adjust the horizontal bolts into the camshaft sprockets in order to maintain chain tension and keep from disturbing the timing chain components. See Special Tools and Equipment .
  4. Carefully move the sprockets with the timing chain, off of the camshafts.
  5. Remove the camshaft cap bolts.
    6. Fig 2: Installing Camshaft Retainer Caps
    GM637767Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Place the camshaft caps in a rack to ensure the caps are installed in the same location from which they were removed.
  6. Remove the camshaft caps and store.
    7. Fig 3: Identifying Camshafts
    GM637768Courtesy of GENERAL MOTORS CORP.
  7. Remove the camshafts.
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