Cam timing in the 10V turbo motor

[Dave C]

Yes, wear away, shear, whatever you prefer to call it ... it's a slipping,
creeping rotation just the same as happens to the rubber part of the damper
due to torque effect on account of the all too common failure to properly
torque the crank bolt to 332 lb ft.

- -
Dave C.




On 9/13/06, Huw Powell <audi at humanspeakers.com> wrote:
>
>
> >>I don't remember there being a separate key in the harmonic damper.  I
> >>thought the key was machined into the hub itself.
> >
> > Dave's right on this,  and the "key" is part of the damper and it will
> > wear away and cause the timing to go bad.
>
> Wear away?
>
> I guess anything can happen, once.  This is a tight, almost "press fit"
> part of an engine that routinely runs to 300k miles or more, wihtout
> bottom end rebuilding, and this part can wear away?
>
> Only if installed horribly, I'd guess.
>
> --
> Huw Powell
>
> http://www.humanspeakers.com/audi
>
> http://www.humanthoughts.org/
>