Engine Size: 1.9
Refrigerant Type: R-12
Country of Origin: United States
I have had compressor refurbished, flushed condenser, evaporator, lines and replaced all seals using nylog and installed new receiver dryer. Will charge with R-12 when ready. All is assembled with 5 oz. mineral oil (1/2 oz is UV dye). It is not maintaining vacuum so I need to leak check. I have the dye in the system and some blue bubble stuff I bought from AMA for leak checking. I need to pressurize. I am not sure if it would be better to use paint equipment to introduce dry air or use some 134a. I believe that 134a does not combine with mineral oil and can be recovered back out without messing up my mineral oil. Is that true? I am worried about air ruining my desicant or 134a ruining my oil. What do you suggest. I don't have nitrogen gear.
If you use R134a, then either the bubble check fluid or even an electronic leak detector could be used. I doubt that the dye will be of value until refrigerant is added and the system run.
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