There are many epoxy glues out on the market today that you can use.
Find the leak, clean the area real good, and it will work fine.
    I repaired a leak in a high pressure fuel line, this way. I went over
the repair with fiberglass to give it straight. This was 6 months ago
and still holding......(not on my van but on and old ford)

            Eric                   86-VW4x4
            vw4x4@fyi.net          72-240z
            Pittsburgh, PA USA     1936-Chrysler

On Wed, 29 Sep 1999, Southard wrote:

> I have an old F#@d  truck with a leaking gas tank (above 2/3 full).  I'm having
> a great deal of difficulty finding a replacement tank (new or used) for any
> reasonable amount of money.  I want to sell the truck, but I want to fix the
> leak before doing so.
>
> I believe I have read on this list about a gas tank sealer process.  Can anyone
> point me to a source of information?  Thanks.
>
> Maynard
> '82 Westy Diesel "Reinhardt"
> '93 EV GL "Klinger"
>