Crack in fuel tank

[CAH]

Look for a product called Pro-Seal. Pro Seal is used in the aircraft industry for fuel tank leaks.

[ahortstumpy2005]

If you have the tank steam cleaned (not just pressure washed) then you should be ok to tig weld it. However I would have thought that it is likely to split again a few inches left or right etc of the repair. Wouldn't you be better having a new stainless (as opposed to aluminium) tank made. I get 3-5 gallon tanks purpose made for race cars for £120 - £180, and these tanks would never split.

[jwalker]

Originally Posted by ahortstumpy2005

...these tanks would never split.

Never say never.

[ahortstumpy2005]

Too True! - but never yet and banger racing is probably a harsher environment then powerboating. Aluminium good for weight, but stainless good for strength.

[Scary Des]

The right Aluminium alloy made well is great for fuel tanks, that is why lorries use them.
I think one of the issues here it that metal fabricators copy the design of a particular component without truly realising all that is involve, just cos it looks the same don’t mean it is Des

[Dirk Diggler]

Originally Posted by ahortstumpy2005

Too True! - but never yet and banger racing is probably a harsher environment then powerboating.

Oh really. Driving round in small circles with the odd shunt now and again with a couple of gallons of fuel on board, hardly compares IMHO.