a/c compressor

I removed the air filter cover and there is only two hoses going into that A/C compressor and they are both for "refridgerant"; the high side and low side. I have no idea WTF you fellows are talking about it being connected to the crankcase........

 

The York style compressors are made like a small 2-cylinder lawnmower engine. There are oil fill plugs on each side of the compressor's crankcase. However, the crankcase is under refrigerant pressure, so don't remove a plug w/o having the refrigerant removed. If you don't, the refrigerant will make the oil foam out all over your engine, not to mention you'll loose your refrigerant charge.

The oil is A/C oil, exact type depends on your refrigerant.
R-12 systems use a mineral based oil.

Systems converted to R134a should have the mineral oil replaced with a a POE oil.

See page 7 of CCI''s York compressor service manual:
http://www.ccicompressor.com/docs/ccisect1.pdf

 

Ok. THanks Verrell, I did see that bolt and began to loosen it and heard air escaping so tightened back up. I had to add some more refridgerant after testing it and plan on adding oil to it too.

 

This frigging noise had ben bothering the crap out of me so I took it over to Ferrari of Central Florida and talked with Rocky, their shop manager/head mechanic. He looked at it and said it sounded like the belt. I couldnt understand why it was the belt if it turned when the engine was on already and only made the noise when the A/C was on. He told me to check the tension of the belt when the engine was cold the next morning. I did and it had a bit too much play. So I removed the air box and started the engine up. With the A/C on I began to tighten up the tensioner bolt until I no longer heard the noise! I still dont really understand why it made the noise because one would think that since it was loose, there'd be no pressure on the compressor and its bearings or clutch and therefore make no noise. But the opposite happened and thats not the first or last time I will be wrong. Problem solved hopefully. If the compressor doesnt fail on me within the next few months or so, I imagine it will be fine since I found out it had been rebuilt by the previous owner and so should last a while. Thanks for the insight guys and sorry for my apparent cranial density!
-Nathan