[s-cars] Noises after replaced 5spd...

[Robert Pastore]

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Fred:

Good point!

My center support bearing was tired, and for some reason, the center u-joint
would hit the shield, but only in rainy conditions.  I never could figure
out "why" only in the rain, but I replaced the center support with a BMW
part, and I bent the shield down a little bit, and these solved the problem.


-----Original Message-----
From: Fred Munro [mailto:munrof at sympatico.ca]
Sent: Sunday, August 10, 2003 9:39 PM
To: Aaron
Cc: Clayton Howes; s-car-list at audifans.com
Subject: RE: [s-cars] Noises after replaced 5spd...


The UrS cars have a driveshaft shield which separates the driveshaft from
the forward part of the exhaust. If someone bent the shield or really,
really screwed up the installation, it may be possible the shield is
touching the driveshaft.

Fred

-----Original Message-----
From: Aaron [mailto:aaront at cox-internet.com]
Sent: August 9, 2003 12:16 PM
To: Fred Munro
Cc: Clayton Howes; s-car-list at audifans.com
Subject: Re: [s-cars] Noises after replaced 5spd...


Is it possible the rubbing could be something (driveshaft?) rubbing
exhaust under certain rpms or load conditions.  Especially if motor
mounts are worn or shot as would be likely at 125Kmi.
My 2cents
Aaron

Fred Munro wrote:

>Hi Clayton;
>
>Vibration while driving can be caused by a misaligned driveshaft. These
>driveshafts have to be aligned in all three planes. The centre bearing
mount
>is slotted for movement fore and aft and side to side. Shims are placed
>under the centre bearing mount to adjust vertical alignment. Replacing the
>transmission would certainly change the driveshaft alignment and if they
>just threw the driveshaft back in you could get vibration or droning noises
>at certain speeds. It would not necessarily occur at the same RPM in all
>gears. Audi has a special tool to align the driveshaft.
>
>If the engine is vibrating at 3000 RPM in neutral, I'd guess it's a balance
>issue and they may have done something with the clutch or flywheel to cause
>it.
>
>The only chain I know of in these engines is the cam drive chain. Replacing
>the water pump means opening up the timing belt covers, slacking off the
>t-belt tension, and removing the belt from the pump. Maybe something is
>rubbing on the covers or the t-belt is too tight. You should be able to
>twist the t-belt 90 degrees with your fingers if the tension is right. The
>water pump itself may be noisy.
>
>Any reputable shop should care about their work no matter how many miles
the
>car has on it.
>
>HTH
>
>Fred Munro
>'94 S4
>
>
>
>-----Original Message-----
>From: s-car-list-admin at audifans.com
>[mailto:s-car-list-admin at audifans.com]On Behalf Of Clayton Howes
>Sent: August 9, 2003 3:07 AM
>To: s-car-list at audifans.com
>Subject: [s-cars] Noises after replaced 5spd...
>
>
>[ Converted text/html to text/plain ]
>
>So I finally got fed up with my dying 5spd and got it replaced.  Larry and
>Champagne Motors in Denver Co happened to have a slightly used (12K miles)
>from another '92.  Had that, as well as the water pump replaced at the same
>time.  Now, with just about 1000 miles since then, I still have some
issues.
>
>Right after I picked up the car, a weird vibrating was coming from the
>engine
>at 3000-3400 RPM.  This never happened before.  They told me it was due to
>the
>ASW alum. flywheel I had installed almost 10K miles ago.  I just do not
>understand why it would only occur after they install a used tranny.  Any
>thoughts?
>
>I also have a high pitch noice anywhere from 4000 to 4400 RPM.  This only
>happens after the car is warm or has been driven for a bit.  It sounds like
>some sort of chain rubbin against some other piece of metal.  Do these cars
>have any kind of chain that would do such a thing?  Any ideas why this
would
>only appear after a new tranny was put in?  Again, the mechanic does not
>seem
>to care.
>
>Both of these issues only happened after I had the water pump and 5spd
>replaced.  They were right when I picked up the car and they have not
>changed
>since then (little over a month and about 1000 miles).
>
>I would really appreicate any kind of help on this.  If these guys screwed
>me,
>I would like to know.  They do not seem to care since my car has 125K and
>some
>other issues, but that pretty much pisses me off right now.
>
>Thank you all for your help and ideas.....
>CT Howes
>
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