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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 165 (Engine Mechanical - 4.0L (On-Vehicle)) >> Repair Instructions >> Secondary Camshaft Drive Chain Replacement - Left >> Installation Procedure

Installation 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. Install the left secondary camshaft drive chain by sliding the chain down through the left cylinder head and placing the chain on the left exhaust camshaft sprocket.
  2. Route the left secondary camshaft drive chain around the inner row of the camshaft intermediate drive shaft sprocket teeth.
    Fig 1: Installing Left Secondary Camshaft Drive Chain
    G01819332Courtesy of GENERAL MOTORS CORP.
  3. Install the left intake camshaft sprocket into the left secondary camshaft drive chain.
  4. Install the left intake camshaft sprocket onto the camshaft. The camshaft sprocket notch marked LI (left intake) engages the intake camshaft pin.
    Fig 2: Identifying Sprocket Drive Pins At Top Rotation
    G01819333Courtesy of GENERAL MOTORS CORP.
  5. Use an open end wrench on the hex cast into the camshaft in order to prevent the camshaft from rotating when tightening the camshaft sprocket bolt.
    CAUTION: Refer toFASTENER NOTICE .
    6. Fig 3: Using Open End Wrench On Hex Cast
    G01819334Courtesy of GENERAL MOTORS CORP.
  6. Install the left intake camshaft sprocket bolt.

    Tighten 

    Tighten the camshaft sprocket bolt to 120 N.m (89 ft lbs).

  7. Remove the J 44212  from the camshafts.
    8. Fig 4: Removing J 44212
    G01819335Courtesy of GENERAL MOTORS CORP.
  8. Install the left camshaft cover. Refer to Camshaft Cover Replacement - Left .
  9. Install the left secondary drive chain tensioner, Secondary Camshaft Drive Chain Tensioner Replacement - Left .
  10. Install the right secondary camshaft drive chain. Refer to Secondary Camshaft Drive Chain Replacement - Right .
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