[s-cars] For Sale -first gear noise
munrof at sympatico.ca
Thu Apr 22 21:16:45 EDT 2004
>From what I understand it's the sound that indicates the failure - the
tranny works OK.
From: JR [mailto:urs4 at magnaspeed.net]
Sent: April 22, 2004 9:28 AM
To: Fred Munro
Cc: s-car-list at audifans.com
Subject: Re: [s-cars] For Sale -first gear noise
Does the transmission malfunction at all aside from this sound? I mean
is the sound the onjly way you know it's going bad or does it not shift
properly or act up otherwise?
Fred Munro wrote:
>To elaborate on Dave F's post, there are two "tranny noises" associated
>early UrS4 transmissions.
>The first is the pinion bearing noise described in Dave's post. It is speed
>related, independent of the gear the tranny is in, and when entering it's
>terminal phase has been described as sounding like a jet engine during
>The second is first gear noise. As Dave mentions, it is caused by galling
>first gear by over-enthusiastic use of the loud pedal while in said gear or
>by spinning tires (on ice, snow, wet or dry asphalt) while in first gear.
>is only heard when the tranny is in first gear. Audi installed a wider
>gear in the late '95 cars to resolve this issue. The high performance Euro
>cars (mit 6 speeds) got a hardened first gear set.
>From: s-car-list-bounces at audifans.com
>[mailto:s-car-list-bounces at audifans.com]On Behalf Of JR
>Sent: April 21, 2004 12:51 PM
>To: s-car-list at audifans.com
>Subject: Re: [s-cars] For Sale -first gear noise
>So is this noise all the time in first gear, or only when you first
>start, only when shifting, or only when you mash on it?
>Just want to know what to look out for.
>Dave Forgie wrote:
>>First gear noise is a high pitched whine from the pinion bearings of
>>some early 92 spec cars (including the elmwood Canadian "93"s). The
>>preload on the pinion bearings was probably set too high at the
>>transmission factory, causing the bearings to fail prematurely. Many
>>transmissions with this problem were changed/fixed under the original
>>warantees. A few may have escaped for later failure. At some point in
>>late 93/early 93 they figured out the problem and not furhter failures
>>of that nature occurred. But then there is the first gear spalling
>>problem (caused by too much horsepower applied too quickly, i.e. dumping
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