Cleaning gas tank

BigTone

Member
There is some rust in the gas tank and I can only see so much of the tank. The previous owner had the sediment bowl and another in line fuel filter hooked up. Whay do you guys do to clean out tank and is there a kit you recommend to line the inside to stop future rust? Thanks, Anthony
 
i have put liners in a few gas tanks. its kind of pia. lately i take them to a local radiator shop, they boil em out and install the liner for about 125 dollars. well worth it.
 
I took a tank off and power washed it out well then used a product called Red Kote I bought at O'Riellys follow directions and it worked great for me.

Joe
 

I tried several different methods on my 1940 M. None of them worked. I even poured in some of that liner stuff and then had even MORE problems. Finally, in a last ditch, kill it or cure it attempt, I poured in 2 gallons of muriatic acid. Sloshed it around, let it set, sloshed it around some more, and then drained it out. Rinsed it with water and then let the tank set in the hot sun for a day. NO MORE problems. I did not put in any kind of liner. What little rust was still in the tank gets caught in the sediment bowl. A once a year cleaning takes care of that.
 
Some times you can get lucky and tank it off the machine and then put a bounce of nuts etc in and shake the heck out of it and then wash it out at a car wash or other such pressure washer type of thing. When I do that I then lay it out in the hot sun to let it dry good.

That said I have a A/C D-17 that has a very bad tank and has since I got it and I use it all the time and have never cleaned the tank out I just make sure the sediment bowl has good screen in it and keep it dumped often
 

When I got my 450 gasser the gas in the sediment bowl was ORANGE! I finally had the tank removed, drained, pressure washed, handful of nuts and bolts shook around, pressure washed again, and put back on.
Now the gas is...well...gas colored. It runs fine, cleaning was little effort compared to liners I've read of.
I'm not a fan of inline filters on a gravity fuel system; they cause lots of problems. I am a huge fan of sediment bowls, they work.
 
Coating the inside of the tank with one of those liquid products can work very well, but you must spend the time and effort to get the inside of the tank clean. All rust and corrosion must be cleaned down to clean, bare metal. If you don't, you will be unhappy with the job and blame the coating. I've done it and that tank is still in good shape now, 20 years after it was coated.

But, it is a LOT of work. I spent hours and hours shaking the tank with a handful of 1/2" nuts inside it to break up the rust, several different cleaning solutions to remove the sludge, then rinse after rinse to get it all cleaned out. If I needed to do it today, I think I would get a radiator shop to boil it out for me.
 
(quoted from post at 10:05:30 07/18/17) Coating the inside of the tank with one of those liquid products can work very well, but you must spend the time and effort to get the inside of the tank clean. All rust and corrosion must be cleaned down to clean, bare metal. If you don't, you will be unhappy with the job and blame the coating. I've done it and that tank is still in good shape now, 20 years after it was coated.

But, it is a LOT of work. I spent hours and hours shaking the tank with a handful of 1/2" nuts inside it to break up the rust, several different cleaning solutions to remove the sludge, then rinse after rinse to get it all cleaned out. If I needed to do it today, I think I would get a radiator shop to boil it out for me.

If you are successful at getting the tank clean, bright, and shiny inside, you don't need any liner. That liner was designed for tanks that had pinholes due to rust.
 
I have found the exact opposite of what your saying. When I park a tractor for the winter the tanks are dry or almost dry or I have water problems. The gas we have now days absorbs water out of the air due to the alcohol and then the alcohol evaporates and leaves behind the water. Never had a tank rust that sits empty
 
I bought a F20 over 40 years ago that had a rusty and pitted gas tank. I cleaned the tank and lined it and has never gave me any problems
and still good today. The only thing it has done is liner has changed color. I don't remember what the name of that product.
 

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