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Is the C3 A/C Compressor Leaking?

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Old Aug 7, 2013 | 11:44 AM
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Default Is the C3 A/C Compressor Leaking?

My C3 corvette (’78) air conditioning compressor is thought to be leaking. I believe it is a R4 style compressor. See picture below. Some compressors have a welsh plug in this area replacing the circlip that is pictured.

Just to the right of the blue cap (in the center of the photo) & to the left of the ground wire, you can see some of the greenish leak detection dye that has accumulated. The system is curently operational, but I believe that it is only a matter of time until the 134a leaks out.
I think this is just a matter of replacing the current "O" ring with a new 134a compatible “O” ring. Note that this is a retro from the original R12 system. I’m suspicious that the current “O” ring was overlooked in the retro process and now needs replacing.

Am I overlooking something, or is this just a matter of taking down the system, replacing the current “O” ring, and recharging it with 134?

Last edited by Ely; Aug 7, 2013 at 12:01 PM. Reason: added pic.
Old Aug 7, 2013 | 12:31 PM
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try asking here:

http://forums.corvetteforum.com/c3-tech-performance-3/
Old Aug 7, 2013 | 06:01 PM
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Good Luck with repair!

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Old Aug 7, 2013 | 06:13 PM
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Welcome to the Forum and good luck with that issue
Old Aug 7, 2013 | 09:04 PM
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Old Aug 7, 2013 | 10:25 PM
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Originally Posted by dahogan
Thanks Dahogan. I moved the post to the C3 Tech.
Old Aug 8, 2013 | 06:50 AM
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Welcome and good luck!
Old Aug 8, 2013 | 06:59 AM
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Old Aug 8, 2013 | 07:30 AM
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