YET another belly fuel tank installation idea!!!!!

pcmpete

Petty Officer 1st Class
Joined
Apr 24, 2009
Messages
328
My belly tank was sitting two pieces of plywood that where glassed to the hull held in with foam. I know I know that fuel tanks should not be held with foam.
So I was thinking of ways to to allow air to around the tank and help water get to the bilge area so here is what I am planning on doing unless someone shoots the idea down :(

I still plan putting glassed plywood down first to help spread the load on the hull, but between the plywood and the tank I would fit pieces of fuel tubing filled with resin to create a solid cylinders as the spacers, these should not rot. They even could be made so that each spacer could be shaped to come up the sides of the tank and act as side spacers too.

Your thoughts iboats please....... :D
 

Yacht Dr.

Vice Admiral
Joined
Feb 26, 2005
Messages
5,581
Re: YET another belly fuel tank installation idea!!!!!

Resin filled fuel line to secure the tank ... Im thinking your over thinking this :) ..

What is wrong with foam filling your tank in ? ..

The top straps can be buffered with cut/strips of hose..

YD.
 

pcmpete

Petty Officer 1st Class
Joined
Apr 24, 2009
Messages
328
Re: YET another belly fuel tank installation idea!!!!!

Resin filled fuel line to secure the tank ... Im thinking your over thinking this :) ..

What is wrong with foam filling your tank in ? ..

The top straps can be buffered with cut/strips of hose..

YD.

Too many bad reports, plus my tank area had no drainage and was foam filled and as a result had a lot wet foam under the tank. Granted, it had that setup for 31 years before I got my hands on it :)
 

Woodonglass

Supreme Mariner
Joined
Dec 29, 2009
Messages
25,929
Re: YET another belly fuel tank installation idea!!!!!

Yeah, but if you used Closed cell foam it would NEVER get water logged again and GOD FORBID if the fuel should ever leak the foam should be impervious to it.
 

Bondo

Moderator
Staff member
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Apr 17, 2002
Messages
71,095
Re: YET another belly fuel tank installation idea!!!!!

Yeah, but if you used Closed cell foam it would NEVER get water logged again and GOD FORBID if the fuel should ever leak the foam should be impervious to it.

Ayuh,... Right....:rolleyes:

The Foam in the boat Now, was closed cell when it was put there.....
 

jonesg

Admiral
Joined
Feb 22, 2008
Messages
7,198
Re: YET another belly fuel tank installation idea!!!!!

It depends what the fuel tank is made from, alum needs free air ventilation and should not contact rubber due to the carbon in the tubing.
I glued the tank (60 gal) to the 4 cross supports with PL, its solid.
Nothing else touches the tank all around.
 

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pcmpete

Petty Officer 1st Class
Joined
Apr 24, 2009
Messages
328
Re: YET another belly fuel tank installation idea!!!!!

Yeah, my tank is aluminium, here is a diagram of the old setup:

tank-layout.jpg


and here is my plan with the resin filled fuel tubing"
tank-layout2.jpg


underneath view
tank-layout-bottom.jpg



if I can get away with 'just' foaming the tank into position that would save some time and hassle. ;)
 
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