Holes in the fuel tank

[El__burro]

Good morning, last night i received a slap on my face when I noticed the 2 tiny holes in my fuel tank.
I guess by removing the paint a bit I'll find some more.
Any ideas on what is best to fix this.
I have seen some paste to close the holes, any good? Any brand?

Good day
El__Burro

[stevush]

It might sound crazy but it could be welded. I've seen it done before by a chap who filled the tank with water first. When full of water there are no fumes to ignite so although I wouldn't risk it personally it can be done if caution is observed. In your case the holes are underneath and not seen so maybe worth considering?

Steve

[El__burro]

I did consider that option but only if no other solution is better.
Welding could perforate the material.
Tank needs to be sealed so been washed out already.
Thank you
el__burro

[mike the bike]

I've had that problem too.  I brazed plates over the bottom of the tank but 2 further problems arose;
More holes appeared because the bottom of the tank is as thin as foil.
The rust has a tendency to block the fuel filter.
I used a (modified) Superdream tank until I found a replacement in a breakers but I would consider a tank lining kit, but don't ask me which is the best.

[El__burro]

noooooo.
lets stay positive.

[mike the bike]

I just don't want you wasting your time brazing, welding or filling holes.

[csd4t]

I have used some epoxy type stuff (not sure of the name) to plug a leak on a fuel tank and then done all practice week and 2 x 3lap sidecar races at the Isle of Man without a problem, and thats with 45 litres on board.

[mike the bike]

No matter how many holes you plug up there's always another one, and you still get fuel starvation from the rust blocking the filter.   Been there, done that.....

[Green1]

No matter how many holes you plug up there's always another one, and you still get fuel starvation from the rust blocking the filter.   Been there, done that.....

Same here you think its sorted then months later your lovely new paintwork is fucked  were its sprung another leak.

Mick

[captaink]

I have been there with restorations , in the end I have had the tank shot blasted then you can see the real extent of the holes, these can be brazed and after checking with a gallon of white spirit (not water) that there's no leaks use a tank sealer kit say from frosts restoration or similar.
After that have the tank painted. Nothing worse than fuel leaking when your out on a run somewhere.
No real cheap fix.
Either that or find a new tank somewhere
Good luck....

[captaink]

By the way, you can wash out the tank with a degreaser and cleaner, frosts do them.
They won't smell of fuel and you will get someone to braze or weld it.
If it smells they won't want to weld it.

'BOOM'

[RGP750]

I Have a tank spare here if interested.
Just pm me with a phone number.
Rich

[El__burro]

here is the tank bottom after sanding it for 5 minutes.
i am sure more washing will bring more holes.
is mig welding any good?

regards
el__burro

[AshimotoK0]

I reckon you would blow holes if you try to mig weld it, even on a low current. I would consider Rich's offer of a replacement if it was me. You will forever be wondering if more holes will develop if you weld/braze it plus it could ruin a very expensive paint job if it does.

Ash

[Trigger]

I recon that will come up OK, if brazed. Seeing I am next in line on Rich's tank