Saving Gas Tank

[m606paz]

Yesterday i continued with the cleaning of the tank
Luckily only surface rust
Then pass a phosphatizing deoxidizing liquid

[Matthew P]

That's some work. I once did a Jeep gas tank. I used hot Pinesol (wood floor cleaner) to dissolve the gunk. But it revealed pin holes in the bottom of the tank. As the tank was dented from the Jeep being back into a stump or similar I opted to cut open the tank, reshape and patch in new metal. Still near boiling PineSol worked really, really well. I used it on a carburetor as well.

Matt

[m606paz]

yesterday I continued with the work on the gas tank
I turned to the advice of several friends, all amateurs, so I hope that this way of doing it will give good results.
The plate was screwed to better support the weight of the 42 gallons, and it was welded with plumbing tin. It still remains to seal the head of some screws and do the leak test.

[maple_leaf_eh]

Originally Posted by Matthew P

That's some work. I once did a Jeep gas tank. I used hot Pinesol (wood floor cleaner) to dissolve the gunk. But it revealed pin holes in the bottom of the tank. As the tank was dented from the Jeep being back into a stump or similar I opted to cut open the tank, reshape and patch in new metal. Still near boiling PineSol worked really, really well. I used it on a carburetor as well.

You made me think on a Monday morning - and that is not a good thing. I asked myself what is the active ingredient, and found the following. The Pine Oil gives the product its pleasant 'it must be working' aroma, but the active ingredient is glycolic acid.

https://pestcontrolhacks.com/is-pine...-disinfectant/

https://en.wikipedia.org/wiki/Glycolic_acid

[Matthew P]

I used plumbers solder on my tank as well. After several false starts due to pinholes I eventually got it sealed up. It appears to have been holding fine for a couple of years now.

Matt

[m606paz]

Finished tank without leaks

[m606paz]

The tank place under the seats.
Prior need to work on winch drum

[Alex van de Wetering]

Lovely work Mariano! I also have to repair my fuel tanks someday.....not sure if I go the route of welding it with a constant flow of exhaust gasses passing through the tank while welding......or if I go the less risky route with soldering.

Mariano, is this a late type Gun tractor with the straight body? It never occured to me that these had unique fuel tanks under the rear seats, in stead of them mouted on the side of the chassis rails.