[C320-list] Fuel Tank Leak

[Ken Danko]

I replaced my tank two years ago. The leak was on a seam. From what I 
have read, plastic tanks have a longer life but I couldn't find a 
plastic replacement that would fit in the same space. I discovered the 
leak when the bilge was suddenly full of fuel. The cleanup was a very 
big and messy job which suggests that doing something preemptive, either 
replacement or coating with epoxy, makes sense.

BTW, it took me months to get a replacement tank from Catalina. It might 
be faster to go directly to the tank manufacturer.

Ken

On 11/19/12 7:39 AM, Jeff Hare wrote:
> For people who have found leaks, was it obvious which direction the cause of the leak originated?  Ie: from the inside of the tank out due to something in the fuel, or the outside in?
>
> I've also wondered whether it makes sense to have the tank exterior cleaned, primed and painted with an epoxy based paint then some rubberized spray undercoating for the areas that might contact the supports.  I'm always suspect of stray screws or metal shavings etc., wedging up against the fuel tank and corroding.  Also might seem worthwhile to ensure that the tank is raised slightly above the hull (if it isn't already) so that seawater doesn't sit in contact with the tank anywhere.
>
> I think Steve Dashew commented once that metal boat owners fear a dropped coin finding its way into the bilge.  I've been considering a pre-emptive strike against a fuel tank leak this since our hull is now going on its 12th season.  I thought I saw signs of something oily in the bilge.   I think I have a new spring project.....
>
> -Jeff
>
>