1926 S70 gas tank

[impacsys]

the inside of my tank is nasty! Prior I used PRO15 (or is it 50) to clean and seal. Well the seal stuff has come loose and is worse then before.

 

Any suggestions on how to clean it?

[dep5]

2 hours ago, impacsys said:

the inside of my tank is nasty! Prior I used PRO15 (or is it 50) to clean and seal. Well the seal stuff has come loose and is worse then before.

 

Any suggestions on how to clean it?

GOOGLE on electrolysis.

Use a mixture of 1 oz Arm & Hammer Super Washing Soda per gal of water. Fill the tank with the amount of solution as required. Place a large diameter bolt  or rod in the sending unit opening to serve as an electrode and insulate it from the tank. Don't let it touch bottom.

 

Cleaning the inside of a tank requires reverse battery connections. Use a conventional battery charger, hook red to the electrode, black to the tank. Low amperage will work but don't try to use a trickle charger. Let it set 4-5 hrs and shut off the power. Withdraw the electrode and wipe it off. Re-insert it and repeat. After a couple days the tamk will be clean. The garbage will migrate to the electrode. This is what I use successfully. Others do as they wish, such as molasses.. I tried to avoid the discussion of electrodes and anodes in order to keep it simple.

[impacsys]

very interesting..... I will give it a try and let you know how it works.

[28 Chrysler]

What I have done,  take a piece of re-bar and wrap black tape around the end and also where it touches the opening.

 These tanks have a baffle that can be a pain. Do not use stainless steel.