This thread from thesamba.com might be helpful;
http://www.thesamba.com/vw/forum/viewtopic.php?t=292298&highlight=odometer+repair
�
I have done something like this (a few times until I got it right) and mine has been working well for a couple of years and a couple of thousand miles since completion. My fix basically involved knurling the shaft where the infamous "metal�gear" resides. �'87 Westy also.
�
Stephen

--- On Fri, 7/13/12, Michael Hart <mjhart853@YAHOO.COM> wrote:

From: Michael Hart <mjhart853@YAHOO.COM>
Subject: Seeking Odometer Fix Info
To: vanagon@GERRY.VANAGON.COM
Date: Friday, July 13, 2012, 12:50 PM

My '87 Westy Odometer has finally succumbed to 'Vanagon Odo Syndrome'
- no more logging of miles (both main & trip odos) although the speedometer still works fine�
Can someone please point me to a good repair description (I'm only able to find lots of bits & pieces in the archives)

Thanks,
Mike
'87 2WD Westy 'T3WESTY'
160,256 miles and not counting...