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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 >> Camshaft 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 the camshaft cover. Refer to Camshaft Cover Replacement .
  2. Remove the exhaust camshaft position (CMP) sensor. Refer to Camshaft Position Sensor Replacement - Exhaust .
  3. Remove the Intake CMP sensor. Refer to Camshaft Position Sensor Replacement - Intake .
  4. 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.

    5. Fig 2: View Of J 44221 Installed On Camshafts
    GM858336Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Camshaft Holding Tool Caution .
  5. Install the J 44221  to the rear of the camshafts.
  6. Remove and discard the intake and the exhaust camshaft sprocket bolts.
    7. Fig 3: View Of J 44222 Installed Onto Cylinder Head
    GM760724Courtesy of GENERAL MOTORS CORP.
  7. Install the J 44222  onto the cylinder head and adjust the horizontal bolts into the camshaft sprockets in order to maintain chain tension and keep from disturbing the timing chain components.
  8. Carefully slide the sprockets with the timing chain from the camshafts to the J 44222  .
    9. Fig 4: View Of Camshaft Caps
    GM858183Courtesy of GENERAL MOTORS CORP.
  9. Alternately loosen the camshaft cap bolts a few turns at a time until all valve spring pressure has been released.
    10. IMPORTANT: Place the camshaft caps in a rack to ensure the caps are installed in the same location from which they were removed.
  10. Remove the camshaft caps.
  11. Remove the J 44221  from the camshafts.
    12. Fig 5: View Of Camshafts
    GM858184Courtesy of GENERAL MOTORS CORP.
  12. Remove the camshafts from the cylinder head.
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