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Flushing A/C System and Converting to R-134 700

posted by  BobbyC on  Tue Jun 4 14:25 CST 2013
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last visit: Tue Oct 29 08:31 CST 2013
[RELATED]

1989 740

I am converting and replacing my old Diesel-Kiki w/ a Sanden 709 (I was told it's much more efficient).

I was reading the FAQs, and it said that if I flush the FLEXIBLE LINES, I will remove the protective "barrier" created by old mineral oil in R-12, and they will leak R-134 (as will OEM stock replacements for my car since they are intended for R-12).

Therefore, would I be correct in assuming that I should disconnect all lines, but ONLY flush the solid components (Evaporator, Condenser, Solid (non-flex) Lines), and perhaps only blow out the flex lines w/ air?

I plan to replace all O-Rings, and they recommend Nitrile? Is this the best for R-134 and the Ester replacement oil?

Thanks,
Bob






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