I thing your leaking from the sending unit gasket.If it only leaks if the tank
is full this is your problem. Drive van until very low on gas and drop tank and
replace sending unit gasket. THTM  = This happen to me

LAC wrote:

> Greetings Volks.
>
> Gas tank was leaking yesterday....... after having parked horizontally on a
> rather steep incline for the entire day....and after having filled the tank
> that morning.......Leaking from side flange seam. ......on an Extremely hot
> day (102 degrees in shade)......What is the remedy?  Should I be driving
> this?
>
> TIA.!
>
> Louise
> 89 Westy "Box of Rain"
> 72 Westy "The Villa"