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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 Replacement - Left 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. Refer to Secondary Camshaft Drive Chain Replacement - Right Side .
  2. Remove the left secondary drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Replacement - Left Side .
  3. Remove the left camshaft cover. Refer to Camshaft Cover Replacement - Left Side .
    4. Fig 1: Ensuring Camshaft Sprocket Drive Pins Are At The Top Of Their Rotation
    GM517149Courtesy of GENERAL MOTORS CORP.
  4. Ensure both camshaft sprocket drive pins are at the top of their rotation.
    5. Fig 2: Using Camshaft Holding Tool
    GM650538Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to CAMSHAFT HOLDING TOOL CAUTION .
  5. Install the J 44212  over the camshafts. See Special Tools .
    6. Fig 3: Holding Camshaft
    GM749356Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Torque Reaction Against Timing Drive Chain Notice .
  6. 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.
    7. Fig 4: Identifying Left Intake Camshaft Sprocket Bolt
    GM650547Courtesy of GENERAL MOTORS CORP.
  7. Remove the left intake camshaft sprocket bolt.
  8. Slide the left intake camshaft sprocket off of the camshaft and remove the left secondary camshaft drive chain from the camshaft sprocket teeth.
    9. Fig 5: View of Left Secondary Camshaft Drive Chain
    GM685362Courtesy of GENERAL MOTORS CORP.
  9. Lift the left secondary camshaft drive chain from the camshaft intermediate drive shaft sprocket teeth.
  10. Remove the left secondary camshaft drive chain from the engine.
  11. Clean and inspect the camshaft timing drive components. Refer to Camshaft Timing Drive Components Cleaning and Inspection .
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