GM Service Manual Online
For 1990-2009 cars only

Compressor Shaft Seal Install V7 - Direct Mount

Tools Required

    • J 39893 Pressure Test Adaptor
    • J 34614 Shaft Seal Protector
    • J 42136 A/C Lip Seal Remover

    Object Number: 157231  Size: SH
  1. Dip the new A/C compressor shaft seal (1) in clean 525 viscosity refrigerant oil and assemble the seal onto the J 42136 , by turning the handle clockwise.
  2. Install the J 34614 onto the A/C compressor shaft.
  3. Using a rotary motion, slide the new A/C compressor shaft seal onto the A/C compressor shaft until the seal is fully seated.
  4. Remove the J 34614 by turning the handle counterclockwise.

  5. Object Number: 157228  Size: SH
  6. Install a new A/C compressor shaft seal retaining ring (2), using internal snap ring pliers (1).
  7. Make sure that the chamfer side of the retaining ring is facing up and that the retaining ring snaps into the groove.


    Object Number: 157239  Size: SH
  8. Leak test the A/C compressor, using the J 39893 .
  9. 6.1. Install the J 39893 onto the A/C compressor and pressurize the suction and high-side of the A/C compressor with R-134a.
    6.2. Temporarily install the shaft nut.
    6.3. With the A/C compressor in a horizontal position, rotate the A/C compressor shaft in the normal direction of rotation, several turns by hand.
    6.4. Leak test the seal area and repair if necessary.

    Remove the shaft nut.

  10. Recover the refrigerant.
  11. Remove the J 39893 .
  12. Remove and clean any excess oil resulting from installing the new seal parts from the shaft and inside the A/C compressor neck.
  13. Install the A/C compressor clutch plate and hub assembly. Refer to Compressor Clutch Plate/Hub Assembly Install .
  14. Remove the A/C compressor from the J 41790-A .
  15. Install the A/C compressor into the vehicle.