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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 419 (Engine Mechanical - 3.5L (On-Vehicle)) >> Repair Instructions >> Primary Camshaft Drive Chain Guide Replacement -Right Upper >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the primary camshaft drive chain tensioner. Refer to Primary Camshaft Drive Chain Tensioner Replacement .
  2. Transfer the chain slack from the primary camshaft drive chain tensioner area to the primary camshaft drive chain upper guide area by moving the chain links clockwise around the right intake sprocket.
    Fig 1: Locating Chain Links Around Right Intake Sprocket
    G01816835Courtesy of GENERAL MOTORS CORP.
  3. Remove the front engine lift bracket bolts.
  4. Remove the front engine lift bracket.
    Fig 2: Removing Front Engine Lift Bracket
    G01816836Courtesy of GENERAL MOTORS CORP.
  5. Remove the chain guide access plug (1) located in the cylinder head. Note the O-ring seal on the access plug.
    Fig 3: Removing Chain Guide Access Plug
    G01816837Courtesy of GENERAL MOTORS CORP.
  6. Remove the primary camshaft drive chain right upper guide bolts.
  7. Remove the primary camshaft drive chain right upper guide by pulling the guide downward through the front cover area.
    Fig 4: Removing Primary Camshaft Drive Chain Right Upper Guide
    G01816838Courtesy of GENERAL MOTORS CORP.
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