R-12 can be purchased at a VERY FEW refrigeration supply houses (old stock, not yet depleted) but you need EPA certification and the price is ASTRONOMICAL. A better solution would be to use R-414B, or "hot shot", as it is a drop in replacement for R-12, and actually runs a little lower pressure for the same cooling. Good for compressor longevity.
But you still need the EPA cert DON'T just drop in 134a as the expansion valve does not have sufficient adjustment range to meter it correctly and it will eat the rubber seals in the system over time Best bet? Buy a local refrigeration dude a cold one, crack your wallet and tell him to hook you up with some "hotshot". It works You don't need R12 for anything anymore.
The last cars to use it were about 1994. If you are driving something that old, I would just put in R134. Contrary to popular belief, nothing bad will happen, it just won't put out as much cool air In reference to the first answer, you cannot just charge your system with R-134a, the O-rings in the system are designed to withhold the chlorine in the R-12.
The hydrogen in R-134a eats away in at the seals in those systems. Retrofitting is the best way to get around an empty R-12 system. You have to get a new accumulator for an orifice system or a receiver/dryer for a thermo expansion valve (TXV) system.
Replace any sources of leaks. Add PAG oil for lubrication of the O-rings and the compressor, you should have 2 oz. Of oil for every component in the system.
Example the components in an orifice system; compressor, condenser, orifice, evaporator, accumulator, and lines. 16 oz of oil. You should fill your retrofitted system with only 80% of the manufacture's spec for R-12.
Example: In a 3 pound system, fill your car with 2.4 pounds of refrigerant. This ensures generically the coldest your new R-134a system will blow. If your R-12 system works perfectly fine and is just a pound short of a full charge, ask a local professional if they could track some down for you, it's going to be more expensive but there's a lot less work to be had Answer Due to federal law, only licenced repair shops can possess r-12.
Might as well go to the pros for a recharge. I got lucky and found a few cans in a friend's basement. John In Montana Answer Go to Walmart and spend 33.00 for a kit.
Have a vacuum pulled on your system and changge the high side fitting with the correct one in your kit. Put the new can of refrigerant oil in and the freon while running your a/c on max. Stop adding freon when the compressor kicks on a 25 and kicks out at 40. There is a gauge on the filler apparatus that comes in the kit.
It is a very simple procedure Answer The kit mentioned will not have R-12. It will have R-134a, or worse, an "R-12 substitute." If your system is designed for R-12, it may not work well with R-134a, and the R-12-compatible oil in it will not mix with the R-134a.
There is a possibility of damaging the system. Using an "R-12 substitute" often has an even greater risk of causing damage. If you want a safe, reliable repair, have a competent shop service the system with R-12 or do a proper, complete conversion to R-1343a for you Answer You can get cans in Mexico Answer E-bay Answer You can't buy R12 anymore unless you go to a professional.
The best thing to do is get the car retrofitted Answer It is against the law to buy or sell R-12 unless you are a qualified mechanic. Then scarcity of R-12 has driven the price so high,it is better to get retrofitted. The price you would pay from the black market isn't worth it Answer.
You're currently the high bidder, but you're close to getting outbid. , this auction is almost over and you're currently the high bidder. , you're the high bidder, but the reserve price hasn't been met.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.