On 10/26/09, Edward Duntz <eduntz@hotmail.com> wrote:
>
> It is my understanding that the expansion tanks are for expansion of gas
> vapor, not liquid gasoline.

For sure. I can see that.  Likely I misread something in the archives.

Actually, looking at Bentley again, it says that one should tilt the
each valve 180*. Guess in the event a Vanagon ends up 180* they're
meant contain the "expanded" fuel.

Heh heh.

> The top of the filler pipe is indeed higher than the tank, but the gasoline
> shouldn't get right up to the top when filling. The gas pump should stop it
> well before that, and also, on later models, there is a piece in the bottom
> of the filler pipe where it goes in the tank to prevent this as well. It
> looks like a ping-pong ball inside a small plastic cage.
>
> I know of a guy who has totally removed both of his expansion tanks and he
> says he has experienced not ill effects. I'm not recommending it, because I
> don't know enough about the system to know whether they're necessary, and it
> apparently may depend on the ambient temp?

Well, I guess the bottom line for me is to find a way to sneak in and
install a FI hose clamp on the hose at cross over pipe or drop the
tank to do it.

Dang.

At least it's not actually leaking fuel. Just seeps. Still.....

And yah. A pinp pong ball thing would be nice. I have no idea why it's
been overfilling the last few times.

Neil.

--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines