GM Service Manual Online
For 1990-2009 cars only

Compressor Clutch Plate/Hub Assembly Install V5 - DirectMount

Tools Required

    • J 33013-B Hub and Drive Plate Remover/ Installer
    • J 33027-A Clutch Hub Holding Tool
    • J 33017 Pulley and Bearing Installer
    • J 41790-A Compressor Holding Fixture

    Object Number: 157219  Size: SH
  1. Install the shaft key into the hub key groove (4) approximately 3.2 mm (1/8 in) out of the keyway.
  2. The shaft key is curved slightly to provide an interference fit in the hub key groove.

  3. Clean the surfaces of the clutch plate (1) and the clutch rotor (2) before installing the clutch plate and hub assembly.
  4. Align the shaft key with the shaft keyway in the clutch plate and the hub assembly and place onto the compressor shaft (3).

  5. Object Number: 157222  Size: SH
  6. Remove the J 33013-B .
  7. 4.1. Remove the center screw from the body of the hub and drive plate installer.
    4.2. Install the center screw into the opposite end of the hub and drive plate installer.
  8. Install the J 33013-B and bearing tools (1) onto the clutch plate (3) and the hub assembly (2).
  9. 5.1. Back the body of the hub and drive plate installer tool off enough to allow the center screw to be threaded onto the end of the compressor shaft.
    5.2. Thread the center screw several turns onto the end of the compressor shaft.

    Do not tighten the center screw on the compressor shaft.

  10. Hold the center screw with a wrench.
  11. 6.1. Tighten the hex portion of the hub and drive plate installer body several turns.
    6.2. Remove the hub and drive plate installer from the clutch plate and hub.
    6.3. Make sure that the shaft key is still in place in the keyway.
  12. Reinstall the J 33013-B .
  13. Place a feeler gage between the clutch plate and the clutch rotor.
  14. Tighten the hex portion of the hub and drive plate installer until the air gap between the clutch plate and clutch rotor is 0.40 mm (0.015 in).
  15. Make sure that the air gap is even all around the clutch plate and hub assembly.


    Object Number: 157218  Size: SH
  16. Remove the J 33013-B .
  17. Hold the clutch plate and hub assembly (2) with the J 33027-A .
  18. 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.

  19. Install the compressor shaft nut.
  20. Tighten
    Tighten the compressor shaft nut to 17 N·m (13 lb ft).

  21. Spin the pulley rotor by hand to make sure the rotor is not rubbing against the clutch drive plate.
  22. Remove the compressor from the J 41790-A .