I can't speak as to the Black Silicone looking thing he used on the seals.  But I do believe it said it was ok for gas. Not sure.

Gravity Valves are where?

Vapor Recovery valve is on the left, right front or behind the air filter? What should I do with it once I locate it?

I never have heard any pressure release sounds coming from the gas tank cap and this is my second van, so what is missing?

Thanks,
Robert

On May 22, 2011, at 6:58 PM, Dennis Haynes wrote:

> Silicon and gasoline. What was someone thinking. Most say on the tube not
> for use with gasoline or on head gaskets. It could just be a loose hose or
> one of the gravity valves on top of the expansion tanks. Also check the
> operation of the vapor  recovery valve near the air filter. If all is well
> whenever you open the cap for filling you should hear some pressure
> escaping. After repairs the tank and vent system can be charged to 2-3 psi
> to make sure the vapors are kept in.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Robert Stewart
> Sent: Sunday, May 22, 2011 6:06 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Gas Vapors
>
> A year ago my mechanic and I removed my new gas tank and installed the
> crossover pipe and a seal kit with all the rubber grommets and clamps. He
> used some special RTV silicone on all the rubber grommets before installing
> it.
>
> Now it's a year later and the smell of gas permeates outside the vehicle
> when I fill up. I have no idea what to do.
>
> I am at my wits end at this point.
>
>
> Either a hose is damaged, or a seal must have blown ( hard to believe with
> the new rubber and RTV silicone though).
>
> Does anyone have any advice?
>
>
> Thanks,
> Robert
> 88 Automatic Wolfsburg
> All New Fuel Lines
> All New Hoses
> Rebuilt Engine
>