Chad J. Douglas wrote: > > That's probably why your AC compressor is dying. It wasn't designed > for R134. Since you're using 134 already, I'd say "go for it." > <scratches head> Many people have converted and have no problem. R-134 won't "kill" a R-12 system. The seals aren't the same and tend to let 134 leak out where 12 didn't. I've spent considerable time researching automotive A/C years ago when mine wasn't working and all I've seen is that what happened when the R-12 -> R-134a change came into the production lines, is mostly a larger condenser since 134 isn't as efficient in thermal-transfer, at least that's what happened in 94->95 in the RX-7.
If the compressor bolts up, has the same fittings and the rest of the system is similarly sized, it should work. It's just a pump. As long as it isn't pumping freon in an undersized system that would cause it to be overpressurized, it _should_ work. It may require you to do some research and make some changes but there's nothing THAT special about an A/C compressor. Look up the specs on the NB and NA systems (factory manual) and compare. An A/C tech that just doesn't do run of the mill replace "bad" with "good" and understands refrigeration can probably tell you exactly what to do to use that compressor, I just don't recall all the variables off the top of my head. I imagine that hot rodders do this quite a bit - use a pump from one car because it bolts up to the engine but the condenser/evap setup from the original car. You should flush the lines, condenser, evaporator (not the compressor or the valve, IIRC), replace accessible seals, get a new dryer and you should be good to go. Oh yeah, you need to vacuum the system down before filling it to "boil" off the moisture. I replaced a compressor in my driveway on my parents car and it has been running fine with no leaks for several years, so it can be done by a shadetree (even without a perfect "micron-level" vacuum pump setup, but that's the right way to do it). Regards, --Ashraf _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
