Re: Grinding Sound from Right Front - 5KCSTQ

[M Connors <mconnor@frontiernet.net>]

Mark,

    I was curious is the grinding noise all the time or does it occur only when
braking?  Could it be your brake caliper
dragging?  Also, if you drive the car a short distance (say a mile) and stop is
the rim warm/hot?  I am presently diagnosing the same type of problem on my
Quattro and have ruled out brakes and bearings.  I will follow this thread closely
as I am curious of your resolution.  I am hoping (as I am sure you are) it is NOT
the differential.  Please keep the list posted.

Thanks

Mark



Mark Pollan wrote:

> Hi All:
>
> I have just recently developed an almost metallic grinding noise from
> coming my right front.  I thought optimistically that it was just a
> stone wedged around the rotor splashguard but disassembly of the aforementioed
> yielded no stones and the grinding persists.  My driveshafts only have
> about 30K on them so I'm ruling out the CVJ.  This leaves me, I think,
> with either the wheel bearing or something in the diff.  Would a bad
> bearing make such a noise?  In my experience bearing degradation was
> accompanied with more of a humming/droning sound.
>
> I'd greatly appreciate any comments/feedback.
>
> Regards,
>
> Mark Pollan, '86 5KCSTQ 280K Miles