When I recently filled up the tank to my '67, and parked it (on level surface), I came back the next day to find gas on the floor below the tank. Not too much spilled out, and it seemed to have stopped. I'm wondering if it's likely a hole in the neck, and how to go about fixing it. Replace neck? Replace entire tank? Patch hole?
when that happened to me ,it was summer and hot..gas expanded (before I got a vented cap) and blew the seal/gasket at the sending unit...
I`d check and see if you can find where it leaks (do NOT put a match there to light with!), if its the neck or maybe you have a gasket thats bad to the sending unit (if so the gas would come down over the top)...its very hard to fix a leaky tank as you cannot weld on it...if neck is broken , I`d buy a new tank...if its the gasket at the sending unit..its cheap, and all you have to do is drop the tank....run it almost empty first ,that tank gets heavy when you loosen up the straps holding it!
Over the years these tanks develop pinholes. You can buy a gas tank repair kit that seals the inside with an epoxy like coating. I tried this when restoring our bird. It stopped the leak but a lot of work. I eventually just put in a new gas tank in and it looks much nicer than the old. The repair kit was given to me but think it cost about $30. A new tank runs about $100 (purchased a USA made one on ebay). Either option will require the tank to be removed. Not a hard project and only takes a couple hours.
They develop pinholes ,esp if have been sitting ,either empty (moisture) or with gas, as moisture creeps in under the gas as gas is lighter...rusts bottom...IF thats the case, cars run all the time gets new gas, dont develop moisture under the gas
Might think about replacing that hose while you're there. Never hurts to update hoses when you get a chance. All 3 should be replaced every couple of years anyhow with all the crap in gas these days. Cheap insurance.
