I don't know about positive or negative pressure; but when I had the
smell of gas from a topped off tank, it was due to a worn rubber grommet
around where the filler tube goes into the tank.  Of course I didn't
realize this until I had replaced the tank.

John Jensen, Mudbug Pottery
mudbug@toadhouse.com , http://www.toadhouse.com

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of Sean Garrett
Sent: Wednesday, February 26, 2003 12:38 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Positive pressure in gas tank ?

When running does the Vanagon have positive pressure in the gas tank ?
I ran out of gas this morning but I should have gotten at least another
30
miles out of her. So I am wondering with the recent rain here in AZ that
maybe water has been sucked up into the overflow tank lines that are old
and
leak slightly (when I top off the tank I can smell gas for at least
10-20
miles).

Sean Garrett
1981 Westy (his)
1995 Eurovan Camper (hers)
Soon... 1987 Syncro project
sean.garrett@asu.edu