Using evaporust to clean fuel tank

[obnut]

I have a 1957 Johnson ad11 that has a none pressurized fuel tank. Has anyone used the product Evaporust to clean rust out of the tank? If so how well does it work?

[jim-moffatt]

It cleans rust but not sludge. You should first make sure all old oil/gas is removed then use the evaporust. It needs to be at 70 deg or higher t o work well.

[crosbyman]

stones and vibration are pretty good apparently….with a good shake

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[mike-stroz]

Those water based rust removers work really well if you clan the oil and gas out pretty thoroughly first. I like Metal Rescue myself.

[jerryswiss]

I am working on a small tank right now and first I sand blasted it, which works really well on the bottom and sides, but not the top of the tank. Then I filled it up with nuts and bolts and turned it upside down and shook it around. Then wrapped sandpaper around a finger and tried to get the inside top of the tank as best I could.

To neutralize the rust I use this water-based stuff I get at Wal-Mart called Krud Kutter, comes in an 8 oz bottle, really cheap. I have used this stuff for years, it works great.

[amuller]

I agree that you have to get the organic sludge out first, so the rust treatments can get to the tank itself.

[obnut]

Thanks for the info. Tank is empty and all I see is rust.

[crosbyman]

well you have the option of electrolysis… check the web for the proper mixture + some DC current and the rust will be lifted away

btw… if you are running non pressurized…have you considered getting a new tank 😉

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