[s-cars] dual mass flywheel

[Tim Leonard]

Typically is it not the correct way to have the flywheel ground (grinded)? I
just did one today.
Best,
Tim Leonard
ESCARGO

----- Original Message -----
From: <QSHIPQ at aol.com>
To: <jhemmerlin at yahoo.com>
Cc: <s-car-list at audifans.com>
Sent: Tuesday, September 24, 2002 6:26 AM
Subject: Re: [s-cars] dual mass flywheel


> --
> [ Picked text/plain from multipart/alternative ]
> The simple answer:  No.
>
> The more detailed answer:  The normal method for turning a flywheel is to
put
> it on a lathe similar in mounting to a brake rotor, with a cone chuck
> inserted into the center hole.  The problem with doing that on a dual mass
> flywheel, is that there is rubber isolation between the 2 masses.  So the
cut
> can't be even.  I've heard people that claim to have done it this way with
> "no problems", but I don't understand how, neither do a few consulted
> machinists.
>
> It CAN be done by using a chuck that grabs the outer (clutch side) ring.
> That's a big chuck (good luck) and creates some machine mounting issues of
> it's own.
>
> So, the best thing to do is clean up what you have.  Use sand paper or a
disk
> to rid yourself of the burn marks on the mating surface, just scruff it up
> evenly, don't try digging ditches.  When satisfied you have a decent
surface,
> put in a crosshatch pattern of about 60 degrees.
>
> Audi doesn't consider this 800USD part a service item.  Damn.  Good news?
> BMW uses them too:)
>
> HTH
>
> Scott Justusson
> QSHIPQ Performance Tuning
> In a message dated 9/24/02 12:50:31 AM Central Daylight Time,
> jhemmerlin at yahoo.com writes:
>
>
> Hi,
>
> Can the dual mass flywheel in the urS4/S6 be
> resurfaced like any other flywheel?
>
>
> TIA
> Jeff
> 95 S6
> 84 4kqt
>
>
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