Cracked gas tank.

[sonic883]

hi, my motorised bikes fuel tank started leaking quite bad when i was filling up at the petrol station. At home,i drained the tank and took the tank off, at the top, on tge bottom is a rough spot with a crack. for the past few weeks ive been riding with not much petrol in the tank, since the cracks at the top, I need to fill the tank up to where its not reaching the crack. Im going to buy a new tank, but in the meantime whats a temporary fix ? glue ?

 

[Chainlube]

Gas will affect most adhesives, so not much works. Seal All is your best bet.

Seal-All 380112 Contact Adhesive and Sealant - 2 fl oz : Amazon.ca: Automotive

Seal-All 380112 Contact Adhesive and Sealant - 2 fl oz : Amazon.ca: Automotive

www.amazon.ca

 

[DAMIEN1307]

since the cracks at the top, I need to fill the tank up to where its not reaching the crack. Im going to buy a new tank, but in the meantime whats a temporary fix ? glue ?

Just keep in mind that in the link below, that this is NOT how to "fix" your leaky tank, The OP went for kind of more permanent solution there...lol.

High quality gas tanks?

After the gas tank that came with my kit decided to leak in several places even after attempting to fix it multiple times, I had to take it out back. All of the gas tanks on amazon are the same s**tty ones from china and I don't know how to find alternatives. Maybe a plastic one would be better...

motoredbikes.com

A plus one from me with Chainlube's suggestion of Seals All...DAMIEN

 

[sonic883]

I dont have that adhesive in the garage, if i was to order it, i may as well order a new tank. ive heard about soldering the crack shut, will that work ?

 

[Member 30571]

If you're getting a new tank... Just throw some duct tape on it for now.
It should last for a few days... It may not look pretty but it'll get you by for now.

 

[sonic883]

If you're getting a new tank... Just throw some duct tape on it for now.
It should last for a few days... It may not look pretty but it'll get you by for now.

thanks, will do !

 

[mountain80]

Wash tank out thoroughly twice with soap and water and get it brazed. More permanent repair.

 

[LewieBike]

I had a Honda CT90 tank that was leaking from one of the bolt tangs that joins it to the pressed steel frame. Wasn't a big leak but enough that people could smell it and I figured the fumes could be ignited if I left it alone.

Wash out the tank so it doesn't smell like gas before thoroughly drying it and have someone adept at brazing, ( myself in this case..) do the brazing.

I cleaned all the old paint off the tang and bottom of the tank for at least 2 inches because the heat will crackle and ruin whatever paint is present. Lots of flux and go in fast with a hot, adequate sized torch tip so you're not overheating the steel too much. let the brass flow around the break and into the tank itself. After brazing let cool down and then water soak the brazed area so the borax flux is diluted by the water. quickly dry and prime coat and repaint.

 

[Member 30571]

but in the meantime whats a temporary fix ?

He's getting a new tank. So why go thru all that ?.

 

[DAMIEN1307]

He's getting a new tank. So why go thru all that ?.

Exactly...Its way too much effort for too little return when Sonic has already placed a new tank on order...DAMIEN