I am looking to convert my r12 system to an r134A system and to be honest I have no clue where to start. Should I buy all new or is there a way to take the system I have and somehow make it work with R134? Could someone help me with what parts ill need? Or if I can find something to replace the R12 that will work with my system. I'm having a difficult time finding r12 so thats why I want to swap.
The current direct drop in replacement for R12 is RS24 also known as R426A.... check with your local shops to see if any have it. If not, you can purchase a 30lb cylinder as it is environmentally friendly. It is a direct drop in replacement meaning you do not have to change anything, not even the lubrication.
I would recommend at a minimum changing the evaporator valve, rebuilding/replacing the dryer and replacing all the seals.....then charge up with R134. You may also want to consider replacing the compressor with a Sanden compressor. I have done this to two of my cars.
