the unit i assume is mounted underdash. it's aftermarket, but if it's pretty old then it's quality built. no need to rebuild it. it's a coil, a blower, and a txv (expansion valve). a good cleaning (outside) helps the effeciency. NOTHING--AND I MEAN NOTHING needs to be cleaned on the inside, unless there's been a total breakdown of the compressor, or the dessicant charge in the receiver drier has ruptured (rare).
there's a drop in oil that's compatable with r-12 and r-134, so you can do the refit. you can find alot of techs that have the certification for r-12 to do the recharge if ya want to keep it totally original. r-134 isn't as cold as r-12, and the unit will take longer to start cooling down. most people don't notice the difference, unless they live in a real warm climate.
have somebody do this who knows what they are doing. it doesn't have to be a dealer, but if ya overcharge the system it makes a real expensive noise. then it don't cool at all. private e-mail me if ya think i can help.
why does yathink he calls hisself koolkar?
