rust inside of gas tank

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rust inside of gas tank


Post by doc308 » Fri Jul 11, 2008 1:41 am

What is a good method or product to use to get rid of rust inside of an old gas tank?

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Post by oldbob » Fri Jul 11, 2008 3:35 am

Vinger will eat rust , Put small nut's and bolt's or what ever in your tank, small rocks work too and vineger. Vinger is a weak asid that will eat rust fairly fast and steel slower. Shake turn , shake turn to cover all sides of the tank. 24 to 48 Hr. should get rid of all the rust. Then use nut.s and bolt.s and soapy water and shake the crap out of it till tank is good and clean. Then decide to use or not use a good tank sealer.


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Cleaning rust from tank.


Post by 1950 Bobber » Fri Jul 11, 2008 9:01 am

1) Old tried do-it-yourself method is to put a handfull of ball bearings in the tank...wrap it up WELL in a blanket or similar and put it on a slow tumble dry in your dryer.

2) Research a good radiator shop...they do this work.


3) Google search and investigate a rust removing liquid specifically for gas tanks....they are on the market; I think Walneks used to have an advertisement for such 8)

Jim in Seattle "1950 Bobber"

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Post by Cotten » Fri Jul 11, 2008 2:26 pm

I tried the "Rusteco" solution once.

There is no substitute for mechanical action; Aquarium gravel is safe and effective, and a slurry of cracked corn and baking soda works best for flushing out abrasives and neutralizing acids.


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Post by FlatHeadSix » Fri Jul 11, 2008 3:28 pm

has anyone tried this stuff? They make some impressive claims


1950 Bobber

Removing rust!


Post by 1950 Bobber » Fri Jul 11, 2008 4:46 pm

OR to expand on my first post....use a box of BB's/ball bearings, Cotten's stated material, and any other myriad of material. Take off the petcock and tape the opening closed. As previously stated....wrap the tank in a big comforter or heavy blanket, then stuff it in the dryer. Pack blankets around the tank so it would not move, then turned the drier on with NO HEAT. Let it run and enjoy a couple of beers or soda pop, whatever quenches your thirst!!! No solvents, no standing there shaking it till your arms fall of.

Also, another solution.....

Try muratic acid and water mixed 5 to one . Let it soak then rinse out with
soapy water.


Por-15 has a specific gas tank sealer system. ...Follow directions and use plenty of the sealer.

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Post by hogboy52 » Sat Jul 12, 2008 2:11 am

I had an ancient oil bag that needed a good cleaning so I went through the chains, gravel, soap, acid etc. and it looked OK what I could see through the neck, but I thought I would try electrolysis on it.
I filled it with a water-washing soda mix, took a steel rod with duct tape wrapped round the end, stuck it down the neck of the oil bag and hooked it to a one-amp charger. A rusty brown foam oozed out the neck for over two days.
Electrolysis works remarkably well on all sorts of rusty parts without any great physical effort or expensive chemicals.



Post by Ripley/Fla » Tue Jul 15, 2008 2:24 am

Not sure about heavy rust, but I have used Coca-Cola to clean out tanks. Tilt it up, fill it to the brim, and let it sit overnight.

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Post by mbskeam » Tue Jul 15, 2008 1:41 pm

look here...viewtopic.php?f=59&t=4723


1950 Bobber



Post by 1950 Bobber » Wed Jul 16, 2008 2:47 am

Thanks Mike....

The COMPLETE SKINNY on that subject...what more needs' be said?

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