Automotive Air Conditioning Information Forum (Archives)

BillT on Fri June 10, 2011 1:57 PM

Year: 1993
Make: Cadillac
Model: DeVille
Engine Size: 4.9
Refrigerant Type: R-12
Country of Origin: United States

I installed a new Compressor recently in my '93 DeVille. I called and asked the AC shop I that deal with on the correct installation procedure on it first though. He said to just install it as it is, do not drain the Oil in it or change it or anything, just install it as it is.

I checked with my parts store and was told that the Oil in it is just about an ounce and a half of Shipping Oil, possibly called "ICE 32".

We are about to re-charge the system with R-12 after all the necessary parts and procedures are completed.

Do you all agree with the AC shop? Is the Oil in it OK to procede on to complete the project?

Bill

HVACNY on Fri June 10, 2011 9:10 PM

Dump it out and put the correct amount of oil in the system.You did flush out all the old oil.If you didnt you will never know the correct amount in the system.Put the correct oil and amount in the compressor and turn the compressor by hand 15 times to circulate it..

TRB on Fri June 10, 2011 9:19 PM

Quote
Originally posted by: BillT
I installed a new Compressor recently in my '93 DeVille. I called and asked the AC shop I that deal with on the correct installation procedure on it first though. He said to just install it as it is, do not drain the Oil in it or change it or anything, just install it as it is.

Bet this shop will claim defective compressor when it fails also.

HVACNY: Is on the right track.




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iceman2555 on Fri June 10, 2011 11:15 PM

Turning the compressor by hand maybe a very difficult issue with some GM style compressors. The break away torque of these units may prevent this procedure. If so, simply add the correct amount of lubricant to the compressor, 2-4 oz in the suction port is sufficient. Install the compressor on the engine, attach the manifold and then rotate the compressor utilizing a spanner wrench or a clutch turning tool (NO the channel locks are not an acceptable method). Add the remainder to the inlet side of the accumulator and you should be good to go.
Good luck !!!1

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