I am redoing the A/C on my 1994 Corvette (134a). It had a leak in the evaporator so I replaced that and the dryer. I also flushed the complete system and drained all the old oil out of the old compressor (Denso 10PA). From the research I found that is takes 8oz of Pag150 oil (?). my question is since the complete system is dry do I ad all 8oz of oil to the compressor or should I add 4 oz to the compressor and then so to each of the other parts (evap, dryer, cond,)? Also does it mater what port (line) I add the oil to in the compressor?
thanks
Chris Lorenz
Corvette A/C rebuild
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Re: Corvette A/C rebuild
Add 80% to the compressor via the suction port. 20% to the accumulator.
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Re: Corvette A/C rebuild
Thanks for the help. Is there a way to tell which post is the suction side?
thanks
Chris
thanks
Chris
Re: Corvette A/C rebuild
the hose that goes to the condenser is the high side
Re: Corvette A/C rebuild
The hose that comes from the evaporator and accumulator is the low pressure side.Dougflas wrote:the hose that goes to the condenser is the high side
Add the refrigeration oil, then turn the compressor (not just the compressor pulley) through at least 10 revolutions with a wrench before evacuating and adding refrigerant. Do NOT add any sealant, just refrigerant, and some UV dye if you desire.
The refrigerant will actually carry/distribute the oil through the system once it's all going.