A 1974 that blew cold in 2006 lost its coolness over the winter (stored) of 2007. Now blows warm. No repairs attempted to date. Car basically sits. Compressor rotates freely But it seems to have lost the R-12 charge. Not an R-134 set-up. Are there seals in these systems that fail? I just bought this car from the USA to be imported to Canada in several weeks time. Before being hosed by a GM dealer I would appreciate your hints. Do these units need a re-charge on a regular basis? Is it that simple? The C2s and C3s I have owned have never had A/C so I am a neophyte.
-
-
Re: Common C3 A/C (1974) Problems?
The leak, if that is what the problem is, could be anywhere in the system. The proper thing to do is have it tested for leaks and repair/replace what is needed to seal it up. If no leak is found, it is common for the front seal on the compressor to seep a bit -- but one can not assume that is the problem -- unless you enjoy throwing parts and money at problems with no assurance of success.
A new receiver/dryer should be installed -- the descant inside that unit will have deteriorated while the system was not filled with gas.
Then the system should be evacuated and refilled with R12.
Your challenge will be to find a shop (not necessarily a dealer) that still works with R12. There are not many in the US, and may not even be many in Canada.Terry -
Re: Common C3 A/C (1974) Problems?
The leak, if that is what the problem is, could be anywhere in the system. The proper thing to do is have it tested for leaks and repair/replace what is needed to seal it up. If no leak is found, it is common for the front seal on the compressor to seep a bit -- but one can not assume that is the problem -- unless you enjoy throwing parts and money at problems with no assurance of success.
A new receiver/dryer should be installed -- the descant inside that unit will have deteriorated while the system was not filled with gas.
Then the system should be evacuated and refilled with R12.
Your challenge will be to find a shop (not necessarily a dealer) that still works with R12. There are not many in the US, and may not even be many in Canada.TerryComment
-
Re: Common C3 A/C (1974) Problems?
Thanks Terry. I don't believe shops in Canada can use R-12 any longer. Environmental Protection Act, etc. So a retro-fit may be in order once the problem is diagnosed.Comment
-
Re: Common C3 A/C (1974) Problems?
Thanks Terry. I don't believe shops in Canada can use R-12 any longer. Environmental Protection Act, etc. So a retro-fit may be in order once the problem is diagnosed.Comment
-
Re: Common C3 A/C (1974) Problems?
R12 is still legal in Canada, there's lots of vehicles still on the road that use it.Comment
-
Re: Common C3 A/C (1974) Problems?
R12 is still legal in Canada, there's lots of vehicles still on the road that use it.Comment
-
Re: Common C3 A/C (1974) Problems?
Paul,
Where, (what part of the USA) is the car?
Hopefully members near that location can suggest someone to diagnose and repair the A/C.
VerleComment
-
Re: Common C3 A/C (1974) Problems?
Paul,
Where, (what part of the USA) is the car?
Hopefully members near that location can suggest someone to diagnose and repair the A/C.
VerleComment
-
Re: Common C3 A/C (1974) Problems?
I don't know Mike....
http://ca.autos.yahoo.com/maintain/answer.php?air_conditioning_2.htmlComment
-
Re: Common C3 A/C (1974) Problems?
I don't know Mike....
http://ca.autos.yahoo.com/maintain/answer.php?air_conditioning_2.htmlComment
-
Re: Common C3 A/C (1974) Problems?
Anyone can buy a 12 oz can of R134 at almost any FLAPS here in the USA. No license or test needed. Whoever answers those questions should do better research. But then most Internet answers, like this one, are worth about what you pay for it.
Now about some of those protocols you guys signed and we didn't.....TerryComment
-
Re: Common C3 A/C (1974) Problems?
Anyone can buy a 12 oz can of R134 at almost any FLAPS here in the USA. No license or test needed. Whoever answers those questions should do better research. But then most Internet answers, like this one, are worth about what you pay for it.
Now about some of those protocols you guys signed and we didn't.....TerryComment
-
Re: Common C3 A/C (1974) Problems?
Verle,
That is a kind thought but the seller is not feeling well and I have to respect his privacy. I'm going back/forward/whatever to a C3 for the 2008 driving season from my 1967 coupe. Whether that is a good move is subject to all degrees of interpretation. But it is my decision. The 1974 is not NCRS but very clean and mechanically A-OK. Pretty car if not correct.
Comment
-
Re: Common C3 A/C (1974) Problems?
Verle,
That is a kind thought but the seller is not feeling well and I have to respect his privacy. I'm going back/forward/whatever to a C3 for the 2008 driving season from my 1967 coupe. Whether that is a good move is subject to all degrees of interpretation. But it is my decision. The 1974 is not NCRS but very clean and mechanically A-OK. Pretty car if not correct.
Comment
Comment