Gas Tank Modification/Solution

searay4me

Seaman Apprentice
Joined
Jul 11, 2006
Messages
40
I have a 9 gallon plastic tank I have to tilt, remove cap, and wiggle to squeeze it into its space. I want to be able to fill it as close to full as safely possible. Any ideas on how to install a new fill hole and plug (what type), add fuel without removing tank, connections for a gravity feed from secondary fuel vessel, etc.

Thanks
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,760
Re: Gas Tank Modification/Solution

Does it slide under the splashwell??

How about you put an access hole above the tank, and not try to modify the tank itself?

Put one of these over the tank to make it look good.


whitecap_4.jpg
 

Frank Acampora

Supreme Mariner
Joined
Jan 19, 2007
Messages
12,004
Re: Gas Tank Modification/Solution

These tanks are manufactured to specific tolerances and the plastic is a special compound. It is actually a powder poured into a mold which is then heated and rotated in all directions to evenly deposit plastic. Other older ones are blow-molded. At any rate, any modification to a plastic tank is liable to create a danger.

These tanks come in all sizes. Find one with the length, width, and height that suits your space. Buy one specifically designed for permanent mounting below deck, and use a fill fitting, fill hose, and vent, because filling inside the boat through the tank filler opening is very dangerous. Temporary tanks are meant to be filled outside the boat ON THE GROUND --not in the car, to avoid static build-up.

The extra money spent will be more than payed for by the extra safety.

Gasoline is so pervasive in our society that we tend to become a little carefree and lax about its handling. But, Understand that a tank of gas has more explosive power than dynamite. We need to respect that power and potential.
 

robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: Gas Tank Modification/Solution

The polyethylene tanks are difficult to modify or repair because not much of anything will stick to one. Better look around for a tank that fits your space and needs. Moeller makes a great variety of built in and portable fuel tanks and hopefully they'll have what you need. Of course you could have a custom-made aluminum tank made just for your boat, would cost you a few bucks$$, but would be nice! Good Luck!:)
 
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