90Q water pump whine - tbelt is not overtight

[TonyEscobedo]

Car has been sitting for a while you said... Sounds like it's an accessory belt. A/C, power steering or alternator perhaps.

On Jan 2, 2013, at 1:04 PM, <laraa at sympatico.ca> wrote:

> Could it be that the water pump gear and the t-belt teeth are not of the
> same profile ? round teeth vs square teeth ?
> 
> Louis-Alain
> 
> 
> 
> -----Message d'origine-----
> De : quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com] De
> la part de Radek
> Envoyé : 31 décembre 2012 19:58
> À : quattro at audifans.com
> Objet : 90Q water pump whine - tbelt is not overtight
> 
> Happy New Year to all Audifans and Quattroholics!
> 
> After a long rest in the garage, my son's 1988 90Q is finally on the road.
> Among other things, the T-belt was changed, together with water pump and the
> relay roller.  The pump is a brand new Graaf.
> 
> When the car was first started after the RR, the pump was making a
> high-pitched noise, not too loud but quite pronounced.  I went back,
> loosened the belt a bit so it can easily be twisted 90 deg. with two
> fingers, but the whine is not going away.  It is only there at idle, when
> the RPMs increase, it goes away.  I checked with a stethoscope and it's the
> water pump, rather than the power steering pump right above that is making
> the noise, unfortunately.
> 
> Is there a chance that the pump will settle down, or should I replace it
> right away?  I'm afraid of it seizing, with all the consequences.
> Thanks.
> 
> Radek.
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