Using Electrolysis On a Gas Tank and Keeping Rust Out

RTR

Well-known Member
I am thinking about using electrolysis on several tractor gas tanks that I've got to get them good and clean and on the shelf ready to use on a restored tractor if needed. I've got about 15 extra tanks and need to get them in shape to use or sell them. These are for the smaller Farmall tractors. My question is, if I use electrolysis to clean the dirt, rust, and debris out of the inside of the tank; do I need to do anything to keep the rust from coming back? Will it instantly rust over if I put them on the shelf for storage? I don't really care about lining all of the tanks with Red Kote but I can. What are some other good ideas and methods that will stand the test of time without using red kote after an electrolysis cleaning?

Ready, set, go!
 
yes it will start rusting almost the minute it hits the shelf. A metal etch containing phosphoric acid, I use "must for rust" found at Lowes and Home Depot because its cheap is what you need to wash out the inside and spray on the outside. I have found that treated parts will be fine for over 12 months if kept inside.
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Problem with using electrolysis on a gas tank is it works best if the sacrificial metal is in line of sight of what you are trying to clean.
Getting a large enough piece inside the tank and keeping it insulated from the tank is not going to be easy.

If you can find an engine or rad shop that will run them through there cleaning tank they will come out nice.

The method of strapping the tank to a cement mixer and putting an abrasive media inside the tank to tumble it clean works well.

As far as keeping it clean during storage, I would keep it in a warm and dry place or somehow coat the inside with oil.
 

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