Anywhere I can get the old freon?

 

It is available on Ebay and there are a few sources here and there.
R12 is not cheap and be very wary of the supplier as they have not made any of this R12 stuff "NEW" in a long time. I know that other countries were still using it everyday like no big deal. Here they won't let us use it in the cars "designed" for it without spending a fortune for the old reclaimed refrigerants.
A lot of them are selling recycled R12 or reclaimed R12 in a can. I see anywhere from $30 on up for a (12-14 ounce) can of R12. There might be a few left with cans of the old R12 that could be new but those command big money.
Several of the suppliers were offering a "never heard of" brand replacement that "works" with R12...

My dear neighbor bought a "Mixes with ANYTHING gas that solves ALL your problems" kit and I let him use my gauges to put it into his car as I would not work on any Porsche or any car without the proper stuff. I would never suggested buying such a kit and I am telling you why. A few days later my neighbor comes over and said he would like to borrow my Gauge set so he can add another can to it. After first getting the system under some pressure the A/C started cooling so they were excited. He added another ounce or two ounces of "Freon" from this kit and all worked fine for a few days until they asked for the gauges. After this the A/C in the 944 was dead, they killed the compressor and it died violently. Now they have no cooling of their A/C and have to essentially start over with new Compressor, Proper Refrigerant and correct volume of such.
Be VERY careful when even looking at the alternates.

This big question is HOW much do you need to fill an partially-charged system of R12? There are guys here on the Corvette Forum who will show you their digital thermometer in their a/c duct showing twenty/thirty something degrees, okay I "might" agree that a older C4 with R12 would need of just a top off of maybe one can might be the colder way to go so to speak. I would not throw a bunch of R12 at it unless I lived in Arizona. Here in Virginia we don't have your heat so the R134 gets plenty cold.

I switched my own over to R134 in my driveway. R134 works okay IF used properly and it is cheaper than trying to buy the same volume of R12. I have a 1988 C4 Coupe model with the "see through" roof top and that giant fishbowl does get warm quickly but the A/C has never left me wanting.

Best regards,
Chris

 

I have an original DuPont R12 30 lb can container with about 25 lbs left in it that I no longer need, and I was thinking of selling it. I've had it for 20 years or so. Can this be done legally? If so, how does one go about shipping it?

It could be picked up locally in the Asheville, NC area, if desired.

My experience with converting F12 to R-134 was not the best - the old hoses and O-rings leaked shortly after the conversion, and I had to have the old hoses replaced with new design "barrier" hoses and special O-rings to prevent the system from leaking, where the old F-12 never leaked before. This was an expensive lesson for me! on my 72.

Jack

 

Thanks.

 

I live in lower Alabama and it gets hot here. My converted 134 system does just fine. If you want to properly flush the system, Autozone will loan you the flush kit, at least here.

And I do have the pictures ctmccloskey was talking about. outside air 103 center vent 39.

 

Technically you need certified to buy R12 from a retailer. What a individual does depends who complains.