When I fill (overfill) my tank I get a leak from what looks to be on top of the tank. Anyone seen this? I know, the obvious answer is to not overfill the tank, but I have to !

Is it likely the overflow hoze, or the bung gasket, or ????

 

Grab a flash light and find out exactly where it's leaking. I had a leak on the inlet piping where it was rubbing on the body of the truck, but this failure caused it to leak all the time while filling. Seal-all cured that and added some extra padding to prevent wear.

Once you find out exactly we should to be able to help you out a little better. Could be alot of things, failed o-ring, cracked tank, etc, etc. You may find it handy to remove the rear drivers tire to fit your body in there, then have someone fill the tank while you watch.

 

Mine Leaked At The Metal Filler Neck.
Rubbed Against Bed And Wore A Hole In It.
Took It Out And Brazed It.
Easyeast Fix On That Truck In Fact It Was Easyer Than Changing A Fuze