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post #1 of 2 (permalink) Old 08-30-05, 01:01 PM
Dale James
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A/C compressor clutch

Greetings. My 1989 760 turbo recently started squealing. A look under the
hood revealed that the A/C compressor clutch is sometimes "grabbing" on the
compressor body, and throwing off sparks.

Would that mean the clutch is failing, or the compressor itself? The A/C
(converted to R134a) seems to be functioning as well as one could expect for
a conversion.

Thanks,
--Dale




 
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post #2 of 2 (permalink) Old 08-30-05, 08:01 PM
Michael Pardee
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Re: A/C compressor clutch

"Dale James" <dale@cs.cmu.edu> wrote in message
news:df27it$9fv$1@sheepberry.srv.cs.cmu.edu...
> Greetings. My 1989 760 turbo recently started squealing. A look under
> the
> hood revealed that the A/C compressor clutch is sometimes "grabbing" on
> the
> compressor body, and throwing off sparks.
>
> Would that mean the clutch is failing, or the compressor itself? The A/C
> (converted to R134a) seems to be functioning as well as one could expect
> for
> a conversion.
>
> Thanks,
> --Dale
>
>

The clutch is failing - in particular, the clutch bearing. If it is allowed
to eat into the compressor body the compressor won't like it, though - and
normally it doesn't help to leave the A/C off. Fix it soon and it will be
much cheaper.

Mike


 
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