Pascal
I have both and the single pulleys come on Canadian maybe Euro engines too.
The weight on the nose of the crank is a good thing it absorbs vibrations
and smooths out the spining mass of the crank and so on. Bug engines
pulleys will fit but will not seal. The single WBX pulleys   use a synco
type seal.

Bob Donalds

----- Original Message -----
From: "Giasson, Pascal (DNR/MRN)" <Pascal.Giasson@GNB.CA>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, May 20, 2007 11:08 PM
Subject: Crank Pulley: 3 groves vs 1 grove

Just wonoderign if there is any advantage to installing a single groved
crank pulley if I don't have AC, or PS.  I see from the ETKA that they were
made but I have never seen one.  Seems like reducing that weight might be
good.  I know there are all kinds of aluminium ones for the bugs.  Thanks
Pascal
'84 Westy