Compressor Leak Testing (V5 Direct Mount)

Tools Required 

• J 39400-A  Halogen Leak Detector. See Special Tools and Equipment .
• J 43600  ACR 2000 Air Conditioning Service Center. See Special Tools and Equipment .
• J 39893  Pressure Test Adapter. See Special Tools and Equipment .

1. With the sealing washers in place, install the J 39893  on the rear head of the compressor.
   Fig 1: Identifying J 39893 For Testing Compressor Leakage (V5 Direct Mount)

   Courtesy of GENERAL MOTORS CORP.
2. Connect the gage charging lines and the J 43600  .
3. Pressurize the suction and the high-side of the compressor with R-134a refrigerant.
4. With the compressor in a horizontal position, rotate by hand the compressor shaft in the operating direction.
5. Rotate the shaft several times.
6. Using the J 39400-A  , check for leaks at the following locations:
   • Pressure relief valve
   • Rear head switch
   • Front head seals
   • Rear head seals
   • Through bolt head gaskets
   • Compressor shaft seal
7. Perform the measures necessary to correct any external leaks found.
8. Recheck for leaks following any repair.
9. Recover the refrigerant.
10. Disconnect the hoses from the J 39893  .
11. Remove the J 39893  .