86 coupe a/c belt

[Huw Powell]

> I need some help identifying  a part of my a/c system.  I cannot seem
> to get the belt to stop squealing while I'm at idle.   There appears
> to be a small cylinder shaped part, about an inch long that can be
> adjusted closer to the a/c belt, maybe acting as a tensioner of some
> type.  However, the part does not spin like a normal pulley tensioner
> which leads me to believe my assessment is wrong.  I can't believe it
> would be a good idea to have the moving belt be in constant contact
> with a stationary part.  Seems like a sure way to wear your belt out
> really fast.  Is there supposed to be a pulley there?  I can't find
> an illustration anywhere in the Bentley.  The belt is the same one
> that was on the car when I bought it.  It looks small and seats
> really far down in the crank pulley.  Don't know if that would matter
> though.  At driving speed, everything works great.  Any thoughts?

There certainly is no tensioner like that.

I'd say a good start would be to replace the belt (with a good 
euro-profile brand like Continental, might as well do all 3 at the same 
time...) and get the tension right, see if that helps.

If you think the belt is in really good shape, try tightening it at the 
AC pump adjustment.


-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/