[DML] Re: AC compressor whining

["Harold McElraft" <hmcelraft@xxxxxxx>]

Are you sure it is not the belt that has dried out? This is very 
common and a dried out belt can really squeal and often has a range 
of noise. WD40 will last for a while on a belt. Since it stops when 
you spray up top it is probably not the idler bearings.

If the Clutch Bearing were bad the noise would stop when the 
compressor is on. So it is probably not the clutch bearing. If the 
noise is there when the compressor is off and on it is probably not 
the compressor either. It is possible that some pieces are coming 
off the clutch fields behind the pully and causing a rub that goes 
away with WD40 but, I think it is the belt.

Harold McElraft - 3354


--- In dmcnews@xxxxxxxxxxxxxxx, "ryanpwright" <dmcnews_list@xxxx> 
wrote:
> 
> 
> My AC compressor is whining. Actually sounds like a screaching 
noise...
> 
> - Doesn't matter whether the AC is on or off
> - Noise varies in pitch with RPM
> - Noise also comes and goes in same RPM band every time. I can 
hear it
> from 1900-2200, 2800-3000, etc.
> - Spraying WD40 between the pulley and the compressor stops the 
noise.
> I have to repeat this every 1 - 2 weeks.
> 
> Question: Do I have to replace the compressor, or are there 
bearings
> or something else in there that can be repacked/replaced/etc?
> 
> If I have to replace the compressor, I might be wise to convert to
> R-134A. What is involved in this procedure? I have a local A/C shop
> that I trust enough to do some of this work.
> 
> Thank you,
> 
> -Ryan








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