fuel tank crack

[dizzyblonde]

Originally Posted by yorkie_chris

Epoxy resins and the like, while strong have failings. They are very brittle and ceramic like in their behaviour, and also only as strong as their adhesion to the base material.

Welding is cheap enough, chances are you take a drained and removed tank to someone handy with gas welding ... it will cost you £10 or so in a quick cash job.

I'd be asking why it's failed, why has a load of water been sat in the tank so long?

thats wot he said too >>>>>>>

[Stu]

Originally Posted by yorkie_chris

I'd be asking why it's failed,

it was dropped from a great height

why has a load of water been sat in the tank so long?

there hasn't been AFAIK I just raised the issue of rust suggesting the tank would rust before the epoxy resin failed.
The guy has enquired about welding - it was £130. We don't all move in circles that we know someone who'll do a bit o' welding for a drink.

[yorkie_chris]

What did he do, drop it on a spike? They won't just fail like that, they will dent, or seams will split. To poke a hole from simple drop then metal must be compromised.
At lowest point, this suggests water has been sat in it.

hi guys

I put that product on the small hole last night. basically the product does state that it can deal with such small leaks etc. Anyway i am going to get a qoute for welding today from local car garages also. cant ride the bike for a few weeks anyway due to broken ankle so i have filled the bike up and will monitor tank, as tank is not on bike yet. Also will connect the tank and run the bike at a standstill, however looking at the work it looks like there is no chance it will leak imo. the product hardens in ten mins and it states can actually be harder than the meterial it is covering, you can even do work on it such as drilling etc. The dent was caused by me doing work on the bike and it fell off the seat onto the floor possibly hitting on the weakest part of the tank. the actually metal seems very thin anyway so not really surprised it happened.

Also will be keeping an eye out for a second hand tank.

cheers all.

might al work out ok in the end then..

why did you put it on the seat?? put it on the floor.. things cant fall off the floor ....

As a side comment--I have a 4" scar on my chin where a tank blew up after welding
The tank had been drained and left overnight full of water,drained before welding but the tank itself held residual vapours which exploded on contact with the torch. It is very difficult to completely purge the vapours.

Leave the tank almost full of water when you weld it as this reduces any petrol vapour to a minimum and flash it before welding

You could try liquid metal as an alternative to the other stuff suggested.

crikey dicky thats made me go cold at the thought ..

likethe opening seuence to casualty playing in my head..

[dirtydog]

Originally Posted by Stu

This product is specifically designed exactly for the job in hand. It's not like I suggested he shove some chewing gum over the hole.

Chewing gum is rubbish anyway, only lasts an hour or so and no I'm not joking . The tank on my 125 got a hole in it after a bike/astra interface patched it with chewinggum while I was at work that day and then got something similar to what Stu has got and put that on the hole. It was fine for over 6 months untill I found someone to weld it up cheap for me.

Originally Posted by Dicky Ticker

As a side comment--I have a 4" scar on my chin where a tank blew up after welding

I drained my tank and left it for about 2 weeks for it to dry out and all th evapours to disperse and it was fine for welding then.

Originally Posted by Dicky Ticker

As a side comment--I have a 4" scar on my

You could try liquid metal as an alternative to the other stuff suggested.

The guy at halfords said this was similiar to liquid metal, basically very similiar product made by the same company, but this one I used a bit more specific to the the job.

not even going to attempt welding the tank even after draining it. with my luck i will blow up the street

[Stu]

Originally Posted by dirtydog

patched it with chewinggum

Will the real Blue_SV650 please stand up, please stand up