F.J. Stefanovich wrote:
> Get one belt that will fit from alternator - water pump -
> crankshaft pulley
>

The diesel Vanagon pulleys are not in the same plane.  Two belts are
required.  At least some diesel cars (like my Golf) have a single belt,
but they also drive the water pump at much lower RPM.  I would seriously
question whether you could reliably turn the Vanagon water pump with the
minimal belt to pulley contact provided by the single belt setup used on
diesel cars.

Mike Snow