OK, I've found out that it is a R12 system. Is says so on the radiator, and it has screw on fittings. I'm not sure how exactly the compressor works on A/C, but it is kicking on and off periodically. Is it supposed to kick on and stay on, or only stay on for a few seconds and then off? I can't seem to find any leaks, but it's pretty ugly under there, I haven't had a chance to clean up the engine yet. The Accumlator has easy access, but to remove the top of the cannister requires taking off the line that goes through the firewall. Is this the low pressure line that is ok to disconnect or will it cause global warming? I can't see a way to get it off any other way. Is it necessary to remove all the R12 and do a vaccuum test (I realize it's a good idea) or can I just get the R134 kit and go from there? Also, ballpark the price of a accumulator?
Thanks for the help
Capri-- I appreciate the informative reponse.
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