Re: Rust in fuel tank

Posted by MikeH-Tx on January 17, 2002 at 05:56:01 from (144.189.40.222):

In Reply to: Rust in fuel tank posted by Old iron farmer on January 17, 2002 at 04:55:37:

There have been tons of posts on this subject, so searching the archives might help you get several opinions. Here is what I do:

Remove the tank.
Get the flakey stuff out by adding some water and a bunch of large bolts and nuts for a slurry. Get someone young enough to shake it back and forth until most is gone. Some folks mount it onto a rear tractor tire, raise up the tire and run the tractor in gear to rotate the tank. Sounds dangerous to me.

Next, get some Phosphoric Acid from Home Depot (paint section)and put it in the tank. This stuff will eat the rust and not touch the good metal. After 24hrs, rinse it well with water and dry it out. I use the air hose from the compressor with a blower held open with duct tape.

Next, it is recommended to rinse with acetone, also from Home Depot. I haven't done this.

Next, use gas tank sealer to paint the inside of the tank. Mine comes from Eastwood and I get it via Sears Home Auto catalog. You have to be careful not to plug up the drain, and you have to cover up all openings of the tank so you can rotate it and get good coverage. Drain the excess , let it dry and you are good to go.

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