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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 165 (Engine Mechanical - 4.0L (On-Vehicle)) >> Repair Instructions >> Valve Stem Oil Seal and Valve Spring Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the right camshafts. Refer to Camshaft Replacement - Right .
  2. Raise and support the vehicle.
  3. Remove the brace between the engine oil pan and the transaxle case.
    4. Fig 1: Removing Brace Between Engine Oil Pan & Transaxle Case
    G01819509Courtesy of GENERAL MOTORS CORP.
  4. Remove the torque converter cover. Refer to TRANSAXLE (4T80-E) .
  5. Install the J 44214 (1). 
    6. Fig 2: Installing J 44214
    G01819510Courtesy of GENERAL MOTORS CORP.
  6. Lower the vehicle.
    CAUTION: Clean the spark plug recess area before removing the spark plug. Failure to do so could result in engine damage because of dirt or foreign material entering the cylinder head, or by the contamination of the cylinder head threads. The contaminated threads may prevent the proper seating of the new plug. Use a thread chaser to clean the threads of any contamination.
  7. Remove the spark plug from the cylinder being worked on.
  8. Install the base plate of the J 44211 (2)  over the spark plug hole of the cylinder to be serviced.
  9. Install the J 39313 (1)  in the spark plug hole.
  10. Apply constant air pressure to the J 39313 (1)  in order to keep the valve closed.
  11. Install the arm and swivel nut of the J 44211 (2)  over the stud corresponding to the valve to be serviced.
    Fig 3: Identifying J 39313 & J 44211
    G01819511Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to VALVE SPRINGS CAN BE TIGHTLY COMPRESSED CAUTION .
  12. Tighten the swivel nut of the J 44211 (2)  down only enough to allow access for removal of the valve locks.
  13. Remove the valve locks. A magnet is the most suitable tool for this activity.
  14. Loosen the swivel nut of the J 44211 (2)  and swing the arm away from the valve spring retainer.
  15. Remove the valve spring retainer and valve spring.

    Important:  The valve stem seal should not be removed unless replacement is required.

  16. Use the J 38820  in order to grip the seal. Remove the seal by exerting a twisting, pulling motion. Discard the old valve stem seal.
  17. Inspect and measure the valve spring. Refer to VALVE SPRING INSPECTION AND MEASUREMENT .
    Fig 4: Removing Valve Stem Seal
    G01819512Courtesy of GENERAL MOTORS CORP.
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