Fuel tank sealer

[3739ford]

My 42 GPW fuel tank has started leaking around the seam. I used a kit back in 2008 to etch the tank and then seal. It has held up till now, but the ethanol has dissolved the sealer. I don't remember what kit I used back then. I'm looking at the KBS kit. any feedback would be appreciated or another suggestion to fixing the leak.

[FortyNiner]

The POR kit I used 8 years ago has held up. I had reason to look inside the tank recently and everything still is in great shape.

[4t8v8]

Used the POR 25 years ago. Still going strong. Ethanol hasn't bothered it.

[Mart]

If the sealer has deteriorated you will probably have more trouble with bits of sealer detaching.

[3739ford]

Mart, that is what I'm afraid of not getting all the old sealer out of the tank and it start turning loose.

[TJ]

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I would consider looking around for a new tank. People who specialize in old Jeep parts may have them

[3739ford]

I can get new reproduction tanks no problem, but they are not 100% exact duplicate of original. A new reproduction tank is very easy to spot as soon as you raise the seat cushion. I may have to go that route.

What do you think about me pouring MEK into the tank and let sit for several days? I was thinking of doing this and ordering a kit from Bill H. I really like the engine paint I got from him along with the paint for the frame.

[3739ford]

Update:

I tried a new product to me Caswell Tank Sealer, and I'm very pleased with the results. Before the tank sealer arrived I put 2 gallons of vinegar in the tank for 48 hours, and then a gallon of paint & epoxy remover and let set for48 hours. It removed some of the old sealer, but not as much as I wanted. Put the tank on the tractor and put a handful of nuts and dry wall screws in while I mowed. This did more than anything else.

If I had of just waited on the sealer to arrive I did not need to do any of the above it goes right over rust and old tank sealer. I would definitely use this product again, but time will be the real test.

[alanwoodieman]

I sandblast the inside of harley/davidson tanks all the time, then we use por 15 kit to redo, have never had any problem. I also do this with all my restoration tanks-probably 20 tanks so far and again never had a problem