Make sure the fuel tank vapor recovery system is working properly,
including the valve opening when the engine goes above idle. I find this
is not considered for many engine conversions. Also, check the carbon
canister to make sure the carbon is not falling out and clogging the inlet
elbow. Many fuel tanks have collapsed from the suction of the fuel pump
when air can not enter.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Matthias Kuster
Sent: Tuesday, March 13, 2007 2:17 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Gurgling fuel expansion tanks

I got a few answers on this one BUUUT:

Even though it has been hot here in SoCal in the last two days, my
gas expansion tanks usually gurgle most when I drive short distances
(like move it from the parking Gestapo for maybe 2 min), it does it
when it's cold, when it's hot, can't really tell if the environment
has any effect on it or if it's just random. The gurgling/gargling is
coming from the expansion tanks in the front wheel wells. I did
replace the hoses that are accessible, as one of them was soaked and
looking wet, a few weeks ago. Still gurgles. This is not the charcoal
system I am talking about since this  is a Soobie conversion with the
Soobie charcoal setup.
Why would my expansion tanks burp and gargle??? I still do suspect a
fuel pressure problem and will try to check that ASAP. Searching the
archives, as usual, did my head in. Perhaps fuel pump or pressure
regulator. Would that make any sense?? I'll keep everybody posted on
the outcome, which may take some time as I am busy.

Cheers

Matthias (1984 Wolfy Soobie 2.2 "Babar")