What is a good flushing system/method? I thought dryers were refrig. specific as well, but I only see vendors selling one, or do I buy one for a '94-'95 model? Thanks for the tip on the Nylog.
By POA you mean expansion valve? Can I have my old hoses converted to R134a at a hose supply? Gosh I'm full of Q's.
Pour some Mineral spirits in one end while plug the other swish it around to loosen dirt and oil then Push compressed air through it while using a towel on one in to give some back pressure, blow it all out one direction and then do it again the other direction. Several times should do it.
POA valve is the low side valve on the right side of the car next to the timing belt.
To my knowledge with the POA is that when people convert and use the old r12 POA valve which is calibrated to R12 they have less than stellar results.This is one reason why people say you won't have good results regardless.
Replacing the unit with the R134 POA from a 24V should result in cooler temps, may only be 5˚F or so but that is huge for an A/C system. Or have your A/C guy adjust the current one you have.
Dryers are all r134 now and can be used for R12 but again not the other way.
To not make any mistakes always order one for the 24V just in-case the vendor still has some old R12 laying around. I think at this point they are all the same though! Sorry for confusion, I said it was specific basically so that you would not get a NOS r12. R134a compatible filters one which contains XH7 or XH9 desiccant
If have not done so, Flush the compressor with a "quality" POE oil like BVA Auto 100 and when it comes out clean your done.
You can easily have your hoses converted which will probably be cheaper than APE. No flushing needed at this point.
As long as it is all done properly you should get good results even with the old condenser. But of course I highly recommend to change it as this is one of the main components that needs changing for R134 for best results. Like I said I am getting 38-39˚F from the vents on a 100˚F day, sitting in traffic I get about 40-47˚F.
Just a tip as well, when you first get in, run it on high until circulation comes on then turn it down to 3 speed for best cooling.
Expansion valves are all r134 now. I just had some fun this week changing out mine, I had a bad one, only producing 55˚F maybe 60˚F from the vents, put a new OEM one in and bam 38-39˚F
Hops that helps?