Quote:
Originally Posted by Jam911
...and how to avoid it.
Please discuss...
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A. To avoid - Don't put any fuel containing ethanol into the tank.
B. To prevent - seal the tank with an ethanol proof slow set epoxy before you put any fuel containing ethanol.
To fix - Get another fuel tank which has had A or B preferably both.
If you can't get another tank put the swollen one in a warm place with a cheap peltier dehumifier for several months. It will reduce the swelling but not eliminate it, then seal and avoid ethanol.
Personal experience... I got a used tank that was a bit swollen but less than mine was, stuck it in the shed for 6 months with dehumifiers running, then sealed it, then got it repainted. It's not perfect size wise but has stayed where it was since.
You can either buy a 'kit' of sealer or get some slow set Phenol Novalac expoxy which is good with high ethanol concentrations and a bit cheaper. It's also very runny so you can get a good coating.