GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 23523-F Crankshaft Balancer Puller And Installer


    Object Number: 217265  Size: SH
  1. Disconnect the battery negative cable. Refer to Battery Replacement in Engine Electrical.
  2. Remove the left or right front wheel housing panels. Refer to Wheelhouse Panel Replacement in Body Front End.
  3. Remove the radiator shrouds from the radiator. Refer to Fan Shroud Replacement in Engine Cooling.
  4. Remove the drive belts from the vehicle. Refer to Drive Belt Replacement .
  5. Remove the PTO adapter (if equipped). Refer to the Manufacturer's Service Manual.
  6. Remove the crankshaft balancer bolt and the washer.
  7. Remove the crankshaft balancer (external) using the J 23523-F .

Installation Procedure


    Object Number: 217265  Size: SH

    Notice: The inertial weight section of the crankshaft balancer (external) is assembled to the hub with a rubber-type material. The correct installation procedures (with the proper tool) must be followed or movement of the inertial weight section of the hub will destroy the tuning of the crankshaft balancer (external).

  1. Install the J 23523-F stud to the crankshaft. Thread the stud fully into the tapped hole in the crankshaft.
  2. Install the crankshaft balancer (external) over the end of the stud.
  3. Align the keyway in the crankshaft balancer (external) shaft with the crankshaft key.
  4. Use a small amount of RTV sealant to seal the crankshaft key to the crankshaft keyway.
  5. Install the J 23523-F bearing, washer, and nut.
  6. Turn the nut to seat the crankshaft balancer (external) into place.
  7. Remove the J 23523-F .
  8. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  9. Install the crankshaft balancer (external) bolt and washer.
  10. Tighten
    Tighten the crankshaft balancer bolt to 149 N·m (110 lb ft).

  11. Install the PTO adapter (if equipped). Refer to the Manufacturer's Service Manual.
  12. Install the drive belts on the vehicle. Refer to Drive Belt Replacement .
  13. Install the radiator shroud on the radiator. Refer to Fan Shroud Replacement in Engine Cooing.
  14. Install the left or right front wheel housing panels. Refer to Wheelhouse Panel Replacement in Body Front End.
  15. Connect the battery negative cable to the battery terminal. Refer to Battery Replacement in Engine Electrical.