At 06:43 AM 7/24/2009, Mike S wrote:
>Correct. The first thing that happens when you push the reset button is
>that it moves a row of linking gears away from the counting wheels (and
>the driving gear), so the wheels are free to turn and be reset. Very

This agrees with my observation on non-Syncro speedos.  I presume the
Syncro ones are similar.  I've never hesitated to push the button
under any circumstances, 150k miles no problem.

That being said, I wonder (don't have one to look at here) -- is it
possible that holding the button while van is moving will let the
possibility arise of some sort of torque on re-engagement of the
gears?  That's just a WAG at the moment, I don't have a clear picture
of the mechanism in mind.

Cheers,

  --
David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
'89 Po' White Star "Scamp"