Audi 80 alternator

[Per Lindgren]

I also talked to a guy that had belt squeal on his Opel, even though the belt was
tight enough. The problem: THe belts are available in different widths, 9.5 and
10.5 millimeters are to most common. He had a 9.5 belt on the engine, while he
should have had a 10.5. The result of this was that the belt was running in the
bottom of the pulley and slipping in the bottom of the groove. He replaced the
belt with a 10.5 and all problems gone!

PerL
92 Cabrio 2.3E



Huw Powell wrote:

> > I have a 1990 Audi 80 non-quattro.  I notice that at statup i get a bad
> > squeal for the first few minutes until the car is completley warm.  It gets
> > worse when i turn on accesories such as the defroster or headlights.  It's
> > not a belt squeal, but it sounds similar.  It seems to be coming from the
> > alternator, so i'm guessing that the bearings are goin out.  Does this
> > assumption sound correct or is it something else? After the car runs for a
> > few minutes, everything is quiet as can be.
>
> How do you know it's not belt squeal?  Try tightening the belt?  How old
> is it?
>
> I only say this because I've never seen these alts go "really bad".  The
> one in my coupe, for instance, has about 310,000 miles on the bearings.
>
> Another thing to check of course is the voltage regulator brush length.
> Though that shouldn't make noise, just low voltage at higher rpms when
> they are barely long enough to work, IME.
>
> --
> Huw Powell
>
> http://www.humanspeakers.com/audi/
>
> http://www.humanthoughts.org/