The fly wheel is not flat but has an upper surface  where the pressure
place bolts to and the inner lower surface where the clutch disc actually
contacts.  The distance between these two surfaces  is supposed to be a
constant- which it won't be if you just grind the  inner and not the
outer.  Every machinist i've taken these type of flywheels to has ground
the upper and lower surfaces- in the vanagon case it requires you to
remove a few alignment pins.  A quick look in at my  desk reference (aka
Bentley page 13.9 thereabouts) doesn't show this spec though.

ok, back to work

Matthew Pollard             http://www.uidaho.edu/~poll7356
Dept. of Chemistry               http://www.chem.uidaho.edu
University of Idaho                   http://www.uidaho.edu

On Thu, 19 Apr 2001, Zoran Mladen wrote:

> Hi Matthew,
>
> Your comment confused me.  Which two surfaces on the flywheel are you
> machining?
>
> Z
>