[s-cars] New S6 owner / engine noise

[pkrasusky at ups.com]

Eric- 

Ewwwww.  Tranny.  Lucky you.  

My '95 didn't do that but another noise... others' here have tho.  Some
drive on for years like it to no issue, some replace, some 6spd.
replace.  If you have the means and the 'drive' to do it, 6spd. is
highly enjoyable.  Or just ignore it.  Drop the fluid and check for
shards, then choose a stance on where you want to go with it.  

May want to drive until it grenades (if it's not too embarrassing - mine
echoed around my parking garage trolling in 1st), as replacement /
rebuild is quite costly ($2-3k range however you slice it).  Unless you
have a warranty.

-Paul
CT
'95 make//S lot//S of noise//S6 mit CMG ('93 4.2 Kluge'ed 0.68 6th)

 

-----Original Message-----
From: Eric Rechlin [mailto:quattro at rechlin.us] 
Sent: Friday, May 12, 2006 1:31 AM
To: s-car-list at audifans.com
Cc: Krasusky Paul (WQQ2PXK)
Subject: Re: New S6 owner / engine noise

Paul Krasusky wrote:
> Eric, I've not been following all this but based on the above, did the
> car you buy per chance come with an aluminum flywheel?  Just a stab in
> der dark here.

Thank you for your suggestion.

As far as I can tell, the flywheel has never been replaced, so I guess
it is 
the stock dual-mass flywheel.  I have service records going back to
while it 
was still under warranty, and there's no sign of the flywheel being
replaced. 
It wasn't replaced when the clutch was replaced in July 2003, either.

I will try to explain the sound better.  I spent a good half hour
driving back 
and forth today to try to better understand it.  It's almost a metallic 
twanging noise, like you might hear when a spring is slid along a
surface with 
a groove, causing it to jump (making the twang), then be quiet for a
bit, then 
twang again, and so on.

Imagine a spring inside a cylinder with a cap.  One end of the spring is
secured.  The other end, on the side of the cylinder with the cap, is
loose.
There is a groove inside the cap that can catch the end of the spring as
it is
turned.  The cap is turned, and the groove catches the spring for a bit
as it
turns, and eventually the spring breaks loose, twanging, causing the
spring to
be caught by the groove again and the whole thing starts over.  This
sounds
weird, but I think a contraption like that would make the sound I am
hearing.
I know I have heard the sound before on something completely unrelated
to
cars, but I can't think of where it was.

I swear I can *feel* the noise if I put my palm on the shift knob, too.
It
could just be my imagination, though.

Note that the sound only happens when the car is in motion, it is much
more 
pronounced when in gear than when coasting, and it is easiest to hear in
5th 
gear.

Regards,

Eric Rechlin