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If you only have a few small pinholes, you might get away for now with some external sealer. Find "SealAll". most hardware stores and Amazon. Works wonders. Eventually you will need to line the tank. Stay clear of Creme and go for the Caswell.Patrick HayesFremont CA
I see that POR-15 has tank sealing kits, you can get motorcycle specific or automotive size kits, anyone have any experience with the POR-15 product? DonG
Speaking of pinholes I bought an old CEV headlight bucket that looked ok in picture, after stripping the paint off and giving it a thorough vapour blast these nasty pin holes showed up on the sideAnd at the back where there was surface rust on the exterior, a lot of rust worm holes!This has been my typical experience finding one or two visible pin holes in a gas tank, once the paint is stripped and the parts cleaned the metal is tissue paper thin in many places. By the time a pin hole breaks through the surface much of the surrounding metal will be nearly eaten through.I have a 1/2 can of the Alvin Lab Metal left over from my Airone fender repair so I am using the Lab Metal to fill in the headlight bucket from the insde then sand it smooth.
Canuck, I just looked-up Alvin Lab-Metal. Seems interesting. How do you find that stuff works? Others, any comments?
I've the "pleasure" of removing failed POR-15 and Red Kote, never want to have to do either again. A few years ago the dye would leach out of Red Kote and wreak havoc with carburetors, they've since changed the formula. Still wouldn't use either - Caswell for me. Much easier to use and the chances of it failing are far less.
Rare to find a tank with just one pin hole.
rust is relentless