Engine Size: 350
Refrigerant Type: R-12
Country of Origin: United States
I have restored my Vette and it's time to reassemble the A/C system. I have serviced Residential and Commercial A/C systems for many years but am not familiar with auto. My question is: Should I be able to turn the compressor by hand with the clutch engaged? When I bought the car there was no refrigerant in the system so I don't even know if the compressor is good. I bench tested the clutch and it is ok but I can't turn the pulley with the clutch engaged. I would like not to assemble and charge the system if this is an indicator of a bad compressor. Also there was some white/gray looking stuff that came out when I flipped the compressor over. Almost the texture of thick ashes. Is this normal or another indicator of a failed compressor? I did seal the compressor and hoses while storing them to keep out debris.
Yes, you should be able to turn over the compressor by hand when the clutch is engaged, or just the center part; oftentimes by hand, but certainly with a socket/bar.
Out of curiosity, I spin compressor center by hand at the wrecking yard, can spin old ones by hand usually. A brand new one should be tighter, but should move with a wrench.
Thanks for the advice! I thought I would go ahead and install it in the car and try to turn it with a socket bar. I also think if got all of the debris out whatever it is and rinsed it out with mineral oil. BTW I still have 2 cylinders of R-12 and would like to use it. 60# I might could spare a charge to test it.
We've updated our forums!
Click here to visit the new forum
Copyright © 2016 Arizona Mobile Air Inc.