how do I tell if 134 converted?

[d9103365]

I just bought a 77 Cordoba. I think the AC may have been converted over to 134 but I'm not sure. How can I tell?

 

[Redhorse719]

They should have posted a decal stating it has been converted. At any rate the fittings are larger than R12 and are quick disconnect as opposed to the smaller screw on R12 fittings. Hope this helps.

 

[Donny]

R12 has not been available since (I think) 96 or 97.

 

[chrisd]

You could still buy R12 over the counter after the shakedown, but you had to get an ac license to do so. Early on, the licenses were easy to get. But, once the EPA figured out everyone in the autoparts store had one it got alot harder. We still had R12 in AutoZones in Houston until about 2000 or so. They figured out it was more expensive to pay the fees associated with it than it was to keep selling it. And "complete" changeover kits were running about the same price as one can of R12. Freeze 12 is still on the market, but I agree with Mr Belv fittings are your best bet. I don't know if I'd bet on the sticker though. Most of those ended up on the floor.

 

[q-ship]

I just bought a 77 Cordoba. I think the AC may have been converted over to 134 but I'm not sure. How can I tell?

R-12 fittings look like tire valves, R-134 look like air tool fittings.


edit P.S. If you need R-12, craigslist usually has some that can be had/negotiated for about $15 bucks or less per pound, without the licensing requirements.

 

[YY1]

I know a guy who has a pro setup with vac gauges and a bulk fill tank that has been modified to accept bulk 134. He routinely puts 134 in R12 cars and claims zero falures.

I know you are supposed to change the orifice valve, but he doesn't do it, just vacs out the old stuff and oil, and puts in 134.

Just so you are aware. I doubt he is the only one.