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Air conditioning Compressor Paul 2-22-03  
A bearing in my air-conditioning compressor failed recently. I was able to pull it apart and replace the bearing. My question is about the front plate of the compressor. From what I understand, when the air-con is switched on an electromagnetic clutch pulls the front plate against the pulley. The front plate is attached to the drive shaft for the compressor via a key and hence drives the compressor. I would like to know what stops the front plate from rubbing against the pulley when the air con is off (and making a horrible noise)? Also, what pushes the front plate off the pulley when you switch the air con off? I believe there should at least be a washer in there somewhere (which I don't seem to have).
Re: Air conditioning Compressor Sam Watson 2-22-03  
There should be a set of little leaf springs that seperates the drive member from the driven one. These units are usually setup with about.020" clearance between the drive and driven members, adjustment is by adding or removing shim washers.
Re: Air conditioning Compressor Joe 2-25-03  
Make sure that the bearing you installed is bottoming out on the compressor housing. If it isn't maybe that is why you have no gap, especially if you had a gap before.
In my experience I have found it best to replace the entire clutch whenever you have a problem. Rebuilt ones are available.
Re: Air conditioning Compressor Julie 3-30-04  
I have a 1996 Chevy full-size 4x4 Tahoe. I need to replace the clutch bearing in the compressor. How do I get the compressor apart?
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