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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Engine Mechanical - 4.6L - 1 Of 4) >> On-Vehicle Repair Instructions (1 Of 2) >> Secondary Camshaft Drive Chain Guide Replacement - Left Side >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Left Secondary Camshaft Drive Chain Guide
    GM685372Courtesy of GENERAL MOTORS CORP.
  1. Position the left secondary camshaft drive chain guide in through the top of the cylinder head.
    2. Fig 2: Identifying Lower Left Secondary Camshaft Drive Chain Guide Bolt
    GM685368Courtesy of GENERAL MOTORS CORP.
  2. Loosely install the lower left secondary camshaft drive chain guide bolt.
    3. Fig 3: Identifying Upper Left Secondary Camshaft Drive Chain Guide Bolt
    GM685354Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
  3. Install the upper left secondary camshaft drive chain guide bolt.

    Tighten:  Tighten the secondary camshaft drive chain guide bolts to 25 N.m (18 lb ft).

    4. Fig 4: Locating Camshaft Drive Chain Shoe Access Plugs On Front Of Engine
    GM748194Courtesy of GENERAL MOTORS CORP.
  4. Install the left secondary camshaft drive chain guide access plug (4) located in the cylinder head. Ensure the O-ring seal is attached to the access plug.

    Tighten:  Tighten the secondary camshaft drive chain guide access plug to 4.5 N.m (40 lb in).

    5. Fig 5: Ensuring Camshaft Sprocket Drive Pins Are At The Top Of Their Rotation
    GM517149Courtesy of GENERAL MOTORS CORP.
  5. Install the left exhaust camshaft sprocket into the left secondary camshaft drive chain.
  6. Install the left exhaust camshaft sprocket onto the camshaft. The camshaft sprocket notch marked LE (left exhaust) engages the exhaust camshaft pin.
    7. Fig 6: Securing Camshaft
    GM749358Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Torque Reaction Against Timing Drive Chain Notice .
  7. 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.
    8. Fig 7: Identifying Left Exhaust Camshaft Sprocket Bolt
    GM685360Courtesy of GENERAL MOTORS CORP.
  8. Install the left exhaust camshaft sprocket bolt.

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

    9. Fig 8: Using Camshaft Holding Tool
    GM650538Courtesy of GENERAL MOTORS CORP.
  9. Remove the J 44212  from the camshafts. See Special Tools .
  10. Install the left camshaft cover. Refer to Camshaft Cover Replacement - Left Side .
  11. Install the left secondary camshaft drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Replacement - Left Side .
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