Welding Aluminium Diesel Tank. Each of our tanks are built from prime scratch free aluminum sheets TIG welded by hand and handled with care through every process ensuring a scratch free finish. Fuel tank welding is necessary to fix significant tank damage as well as for baffle installation or replacement.
My older brother used to weld tanks. Easy repair I have even done tanks with fuel still in them as long as there is no fuel leaking through the crack or within a couple of inches of it. Dropped squarely on the neck from 10 feet high onto nan unyielding surface presenting no leaks at all.
Depending on where it needs weldingbrazing Id seriously consider a new tank -- often its simply not worth the effort.
Our welders are experienced in both aluminum and steel welding. Easy repair I have even done tanks with fuel still in them as long as there is no fuel leaking through the crack or within a couple of inches of it. Used to work in a tank shop many years ago and every tank was steamed for at least 24hrs with steam kept on while welding or cutting. In short treat it exactly as you would a petrol tank.