Sealing a gas tank

super99

Well-known Member
I took the gas tank off of my Oliver 550 gas to the Quik Strip place in town and they dunked the tank and got all the rust out of it. I stopped at Arnolds Motor Supply and got a can of Northern Radiator fuel tank liner to coat the inside of the tank with. I rinsed it out good this afternoon and will let it set for a day or so to make sure it's dry. I plan to put the old sediment bowl and fuel guage in when I coat it and then take them out and put the new ones in. Any tips on doing this? The can says to pour it in and rotate the tank so it all gets covered and then drain out excess and let dry for at least 24 hours. I've never done this before, just looking for do's and don'ts. Chris
 
I used the Northern product with great results. Just follow the instructions. You'll probably have enough to give it two coats, just give it adequate time to cure between coatings. I just put a threaded plug in the sediment bowl outlet. Used some cork and made a gasket for the gas cap so it would fit really tight and would not leak when sloshing/rotating the tank. Wish you the best.....gobble
 
I've only used Red Kote brand but I'm sure the Northern Radiator is a similar product. A day or so for the inside may not be long enough to dry. I ran an air hose in mine and let air blow into it at a very low pressure for a couple of days on mine. It needs ventilation somehow even if you only put a window fan blowing on it. Any trace of water could cause an adhesion problem with the tank liner.

When I did my tank I rotated the tank every angle I could, even coating inside the top. Any edge left untreated could allow gas to eat it's way under the liner and cause it to lift. It's been roughly a dozen years since I coated my tank and it's still holding.
 

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