: Converting my '93 from R-12 to R-134A

09-16-11, 10:07 AM
I'm thinking of converting the air conditioning on my 93 Allante from R-12 to R134A. Does anybody here have experience with this? I would appreciate anything anyone can tell me to help with this process. My neighbor who owns the gas station up the street has advised me to have this done due to the expense of R12 and I'd just like to know if there are any issues peculiar to our Allantes that I need to know about before getting this done. He's telling me this will cost around $250 to complete.

09-16-11, 10:20 AM
is your system out?

r12 is a bit more expensive, but it also blows much cooler

not to mention, 250 to convert outweighs the cost of top ups for a couple of years

09-16-11, 01:28 PM
Right now my a/c doesn't work because all the coolant has leaked out and the compressor is shutdown. So I was going to have it in to find this slow leak and replace the R-12, but my neighbor told me I should just go ahead and convert it over since the R-12 is so much more expensive than the R-134A. I think he said it's about 5 times more.

09-16-11, 06:22 PM
oh in that situation then yes. as far as i know though youll need a new compressor which is the most expensive part of the conversion. some also say you need new condenser orifice tube and other components, some say those arent necessary. id ask the ac specialist exactly which parts hes replacing and tell him you want to be as safe as possible. nothing is worse than having to pay to do it again

09-16-11, 06:49 PM
The PO converted to R134 in my car and I am not impressed.

09-16-11, 10:47 PM
So, are we saying it may be better just to let them find the leak in the system and just recharge with R12 and be done with it?

09-17-11, 09:56 AM
if its someone you trust and they have access to r12 thats what i would do

09-17-11, 08:07 PM
thats what I plan to do in keeping it r12, its fairly cheap on ebay and craigslist and it cools much better, mine leaks also, but fall in washington state is just about here !

09-19-11, 12:09 PM
Thanks, guys. I think I've decided to just keep it as it is and repair the leak. I appreciate all the info and opinions.

07-12-12, 04:43 PM
Thanks, guys. I think I've decided to just keep it as it is and repair the leak. I appreciate all the info and opinions.

If you don't know the source of the r12 stay away. Much of the after market stuff contains methane,read natural gas. It will explode.

max blue
08-02-12, 01:47 PM
My mechanic, an Allante specialist, strongly discouraged me from converting. I've also heard others say that R-12 is far more efficient.