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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 - Right Side >> Removal Procedure

Removal 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.
  1. Remove the right secondary camshaft drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Replacement - Right Side .
  2. Remove the right camshaft cover. Refer to Camshaft Cover Replacement - Right Side .
    3. Fig 1: Ensuring Camshaft Sprocket Drive Pins Are At Top Of Their Rotation
    GM517164Courtesy of GENERAL MOTORS CORP.
  3. Ensure both camshaft sprocket drive pins are at the top of their rotation.
    4. Fig 2: Using Camshaft Holding Tool
    GM650538Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to CAMSHAFT HOLDING TOOL CAUTION .
  4. Install the J 44212  over the camshafts. See Special Tools .
    5. Fig 3: View Of Mechanics Wire, Right Secondary Camshaft Drive Chain Shoe & Front Cover Bolt
    GM749349Courtesy of GENERAL MOTORS CORP.
  5. Remove the mechanics wire (1) supporting the right secondary camshaft drive chain shoe (3).
  6. Remove the engine front cover bolt (2) from the front of the engine.
    7. Fig 4: Securing Camshaft
    GM749351Courtesy 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 removing the camshaft sprocket bolt.
    8. Fig 5: Identifying Right Intake Camshaft Sprocket Bolt
    GM210266Courtesy of GENERAL MOTORS CORP.
  8. Remove the right intake camshaft sprocket bolt.
  9. Slide the right intake camshaft sprocket off of the camshaft and remove the right secondary drive chain from the camshaft sprocket teeth.
    10. Fig 6: Locating Camshaft Drive Chain Shoe Access Plugs On Front Of Engine
    GM748194Courtesy of GENERAL MOTORS CORP.
  10. Remove the right secondary camshaft drive chain guide access plug (2) located in the cylinder head. Ensure the O-ring seal remains attached to the access plug.
    11. Fig 7: View Of Upper Right Secondary Camshaft Drive Chain Guide Bolt
    GM685331Courtesy of GENERAL MOTORS CORP.
  11. Remove the upper right secondary camshaft drive chain guide bolt.
    12. Fig 8: Identifying Lower Right Secondary Camshaft Drive Chain Guide Bolt
    GM685347Courtesy of GENERAL MOTORS CORP.
  12. Remove the lower right secondary camshaft drive chain guide bolt.
    13. Fig 9: View of Right Secondary Camshaft Drive Chain Guide
    GM685348Courtesy of GENERAL MOTORS CORP.
  13. Remove the right secondary camshaft drive chain guide.
  14. Clean and inspect the camshaft timing drive components. Refer to Camshaft Timing Drive Components Cleaning and Inspection .
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