I bought a fuel pressure tester today, but it's designed for American
cars that have Schrader valves on them.  I'm thinking the Vanagon
doesn't have a Schrader valve, but I should be able to modify this one
to fit.  Before I do, can somebody confirm/deny my suspicion that
there's no Schrader valve on Vanagons?  Has anybody else here done this
before and have any tips for me?  I'm sure I can handle this, but you
know how you get nervous and unsure of yourself when you're delving into
new and unfamiliar territory . . .

Thanks,
Marc