My a/c comp is making this terible sound like the metal ball inside a paint can. I guess it is my bearings, but i am just guessing. I just added refrigerant and the a/c gets cold. Is it possible to replace the bearings in my comp.? Are there other options besides buying a new comp? is there a more efficient compressor that would work in mt 84 240gl, that possibly used less energy/gas? All info/advice is kindly received. reguards

Check the belt tension. I found on my 1984 244DL that when it began making a horrendous racket, it was the belt being too loose.

It may be the compressor, however. The 2-cylinder Yorks is pretty easy to work on. I rebuilt one, but that was 15 years ago, and I don't know if parts are available.

While adding refrigerant did you possible allow the can to be other than upright? If any liquid refrigerant goes into the compressor, the reed valves can be severely damaged. BTDT.

Good Luck,

Bob

;>)

I noticed, after reading your reply, that my belt does seem to have a bit of play in it. I tried to adj., but on my car, the crank to comp belt can only be adj. a tiny bit at the compressors bottom edge. I guess i will have to get a new belt to try it out. Also, some of the refrigerant cans say to dispence upsidedown. Are you suggesting that i should always add ref. right side up in spite of the directions? Thanks of the help. KennethCardell

Hi Kenneth,

B.C.'s experience with the York mirrors mine. If you would change the belt, you'd discover how it is adjusted, using shims between the split sheaves on the crank pulley that are stored in front of it.

The noise, which I'd have bet money was inside the compressor, was apparently the loose belt slapping in and out of the pulley groove under the York's considerable load... or some other physical phenomena related to the loose coupling.

The one in my 84 is still running R12, but much more quietly now that I've removed one of the shims. If you propose to do this, be aware it is easy to damage the sheaves by improper re-tightening of the six M6 fasteners; you must take care to do it slowly and evenly, while working the belt to the outer circumference by hand-rotating the crank bolt.

I've never seen a can that directed you to turn it upside-down, but fact is, I haven't looked at many lately. The way I recall, they were labeled "upright for gas, invert for liquid".
--
Art Benstein near Baltimore