Re: v-belts

["Fred Munro" <munrof@isys.ca>]

Phil;

    I suspect the Audi pulleys are machined to metric specifications and our
imperial sized belts do not match up too well. I've managed to match up
belts, but you have to try several & look closely at the fit. It's easier to
buy the German-made belts from the dealer, I suppose.
    If the new belt fits below the pulley rim, it is a definite no-go.

Fred Munro
'91 200q  257k km

-----Original Message-----
From: Phil & Judy Rose <pjrose@servtech.com>
To: quattro@coimbra.ans.net <quattro@coimbra.ans.net>
Date: Sunday, August 30, 1998 10:55 PM
Subject: Re: v-belts


>A couple of weeks ago I posted about my '91 200q hydraulic pump producing a
>chirping noise. I thought the pump drive belt seemed overly tight, so I
>loosened it and applied dressing, but the squeal returned fairly soon
>thereafter.
>
>Just as Huw (and Fred) described, I noted that this (toothed) v-belt
>doesn't seem to fit the pulley very well. The top of the belt is about 1/8"
>_below_ the pulley's outer rim, and the belt sits askew because of
>mismatched angles.
>
>How is one assured of getting the "right" belt? A "dealer"-supplied belt
>may not necessarily be the answer, inasmuch as records show the dealer
>replaced all three v-belts for previous owner 16 months ago. Hence it's
>probable that the present v-belt is one from the Audi (authorized) dealer.
>Some months later, the hydraulic pump was replaced (at the same dealer)
>with a Shokan rebuilt unit, but no belt replacement was noted. If the
>present belt really is OEM, and if the pulley gets changed along with the
>pump, might it be that the new pulley had *different* dimensions--not quite
>matching the old pulley (and belt)?
>
>Or do dealers just cut corners by selling a non-OE spec v-belt? Naaaaah!
>
>Waiting to hear from Huw about "dealer item".
>
>Phil Rose