Timing belt change - marks on flywheel and on vibration damper not aligning

[radek at uniserve.com]

Thank you all for commenting and narrowing down the possibilities.   
The "shifting pulley halves" seems to be the only logical explanation.  
  Like you say, I'm not going to worry about it, since the piston and  
the flywheel coincide properly.  I made a second mark on the timing  
belt cover and will check after some time if the pulley is still  
shifting.  Thanks to all!

Radek.

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> Message: 1
> Date: Tue, 11 Dec 2012 13:58:39 -0800
> From: Tihol Tiholov <t.tiholov at gmail.com>
> To: quattro at audifans.com
> Subject: Re: Timing belt change - marks on flywheel and on vibration
         damper        not aligning
> Message-ID:
         <CAFgi7AY=2GsRY-myUU2F3cZoMvFx9J0ME0EkyAkUX6qE28Rrcg at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1

> Not necessarily. Mine (on a '88 90 q) lasted for at least 40 or 50K kms
> after a t-belt job with no issues and it was not the cause for getting the
> car out of service.


> [Hide Quoted Text]
> From: Louis-Alain Richard <laraa at sympatico.ca>
..

If this is the case, would such a pulley be prone to complete destruction
in a short period of time ?

Louis-Alain


-----Message d'origine-----

Then the damper pulley outer surface has shifted on the rubber, relative
to the inner portion. Seen that too, but not as often as a
sheared key. Either way, as mentioned by many, just use the flywheel mark
for the crank.

Tony




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