Anyone know of any way to use some sort of space-age plastic and space-age
adhesive to patch the top of a stainless steel diesel fuel tank? Almost no
fluid pressure is involved, and it seems to be overkill to remove the tank
because of a 3" hole. The patch, though, would have to include the filler hose
attachment tube.

I am asking because the hole is larger than the 3/8" that plastic repair kits
say they can fix. But I can't imagine that there isn't a plastic answer to the
problem because they make whole fuel containers (Wal Mart, $3.50) out of plastic.

Thanks,