Engine Size: 2.2
Refrigerant Type: r134a
Country of Origin: United States
Hi I like to know if a r12 dryer is compatible for r134a .I hear that some dryers have bauxite in them and absorb poly ester oil along with moisture. Also do r12 expansion valves have the same superheat as a r134a expansion valve.The car that I am talking about is a four cylinder 1992 honda accord dx.Also will a r12 denso compressor made for r12 operate well for r134a refrigerant.Thank you.
Newly-made driers are all compatible with R-134a refrigerant and PAG or POE oil. You can potentially re-use all the other parts except for the drier which needs to be replaced since it is undoubably saturated with water after all these years.
I assume you're asking this because the A/C is still R-12 and not working and you're thinking of converting it. If the pressure is zero from a total leak-out, before taking anything apart do a static pressure test to try and find the leak(s). If there is still some R-12 left, you should consider keeping the car R-12.
Edited: Sat July 05, 2014 at 10:31 AM by mk378
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