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134a conversion

ceasefire49 on Fri June 27, 2014 2:27 PM User is offline

Year: 1986
Make: GMC
Model: 6.2 Rallye Van 3500
Engine Size: 6.2
Refrigerant Type: R12
Ambient Temp: 106

Okay here is the deal..Since I did some work over time on a Boat hauler I have. I decided to trash the R12 compressor(leaking) and get a rebuilt one. So I got the rebuilt a-6 Harrison and I have decided to convert to 134. Okay I have the new accumulator and I am purchasing a new condenser. Nearly impossible to find hose for it so I am going to do a good flush on it as I had it rebuilt a few years ago. Probably get a new evap as it looks fairly easy to change through the suitcase. So if I get all new parts (Hell I may even have the hose rebuilt again) what the best oil to use in that compressor? I have heard ester Pag 150 you name it. I want the compressor to last more then a few years so the best oil would be cool to know..thanks.


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Too Dumb to die

Edited: Fri June 27, 2014 at 2:29 PM by ceasefire49

bohica2xo on Mon June 30, 2014 12:08 AM User is offline

For 134a in an A6 you can use either Ester or DEC PAG. The A6 was designed for ISO 100 grade oils.

Drain & refill the sump on the A6 with what ever oil you will use in the system. Compressor flushing instructions HERE

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"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

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