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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (Engine Mechanical - 3.7L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Timing Chain and Sprockets Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of CMP Actuator
    GM858340Courtesy of GENERAL MOTORS CORP.
  1. Remove #1 cylinder spark plug. Refer to Spark Plug Replacement .
  2. Remove the camshaft cover. Refer to Camshaft Cover Replacement .
  3. Remove the exhaust camshaft position (CMP) sensor. Refer to Camshaft Position Sensor Replacement - Exhaust .
  4. Remove the intake CMP sensor. Refer to Camshaft Position Sensor Replacement - Intake .
  5. Remove the engine front cover. Refer to Engine Front Cover Replacement .
  6. Rotate the crankshaft in the engine rotational direction clockwise, until the #1 piston is at top dead center (TDC) on the compression stroke.

    The word Delphi on the exhaust camshaft position actuator will be parallel with the cylinder head to cam cover mating surface.

    7. Fig 2: View Of J 44221 Installed On Camshafts
    GM858336Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Camshaft Holding Tool Caution .
  7. Install the J 44221  to the rear of the camshafts.
    8. Fig 3: Releasing Tension On Timing Chain
    GM760721Courtesy of GENERAL MOTORS CORP.
  8. Release the tension on the timing chain by moving the tensioner shoe in.
    9. Fig 4: View Of Tee At Timing Chain Tensioner
    GM760718Courtesy of GENERAL MOTORS CORP.
  9. Place the tee into the tensioner to hold the shoe in place.
    10. Fig 5: View Of Exhaust Camshaft Position Actuator
    GM637783Courtesy of GENERAL MOTORS CORP.
  10. Remove and discard the exhaust camshaft position actuator bolt.
  11. Remove the exhaust camshaft position actuator.
    12. Fig 6: View Of Timing Chain & Sprockets
    GM637575Courtesy of GENERAL MOTORS CORP.
  12. Remove and discard the intake camshaft sprocket bolt.
  13. Remove the intake camshaft sprocket.
  14. Remove the timing chain.
  15. Remove the crankshaft sprocket.
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