I recently purchased a second Vette. this one is air cond and auto. I am considering converting the a/cond to the R134A system from the original R12. Can anyone comment on the issues that may arise or things to watch out for by doing this. The last thing I want to do is destroy the originality of the car(still has original 1967 components throughout). Thank you in advance for your comments ,they are truely appreciated.
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Re: C2 67 Coupe air cond. question
Why do you want to convert? R-12 is available. The system was designed to use R-12. Just curious. -
Re: C2 67 Coupe air cond. question
R12 is not readily available in Canada(home). Rather than try and find the holy grail, I thought the next step(R134)might as well happen sooner than later. The car has a low system right now and I have to deal with it. I would much prefer to leave it as it is, but if I have to change...what are the possible repercussions?Comment
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Re: C2 67 Coupe air cond. question
A few years ago, after all the conversion BS died away I converted my 69 427-400 to 134 changing only the O rings.
The system was evaced for sometime in an effort to ensure as much of the residual oils were removed, (at least as much as possible).
I filled the system with R12/R134 compatible synthetic oil and charged.
There has been much said about this refrigerants ability to "bleed through" R12 designed hoses; in my situation I don't feel this was a factor.
I do believe it is not capable of cooling as efficiently or as rapid a cool down.
However, when I sold it to the "Good Doctor" three years later it was still functioning well in my opinion and I live in Florida.
The fabrication of an adapter was necessary and its legality is in question but the charging valves remained completely stock.
Best of luck
jerComment
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Re: C2 67 Coupe air cond. question
I had 134 in my 65 for a year and it worked. When I went back to r-12 and put new cross flow condensor in I gained 6-8 degrees. As stated I used adaptors to retain all stock appearing valves. Don H.Comment
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