Has anyone replaced the rear mounted gas tanks with a single one down the middle / belly of their SC? I have a 22' SS and am want to put one large tank down the middle. What size / dimensions did you use?
I haven't done it yet but I am going to on my 18' SS project. I haven't been able to find any tanks that will fit under the floor. I think I'm going to settle for this one http://www.iboats.com/18_Gallon_OEM_...view_id.483858 and mount it between the stringers and let it stick up the 3 or so inches as it will be covered by an elevated casting deck I'm going to build in the stern.
I put a Moeller FT4033 40 Gallon Poly Fuel Tank from Great Lakes Skipper, it's a discontinued tank. and Fits great between my stringers and is about 2 inches below deck. I could only go maybe 3-4 inches longer, but couldn't find anything that fit as well.
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1974 Starcraft Islander 21' Mark IV
Mercruiser 165hp Inline 6
GM 250ci - from a '74 Nova
Bored .030, Balanced, w/Hardened Exh Valves
There's a 34 Gallon belly.. there too.. even though it only came with a 18g doesn't mean you need to keep that, I know there isnt' much space down there, but you can gain a few gallons by going with a belly tank. also you typically loose about 1-2 gallons of usable fuel and depending on where you boat you may want a little more. :-)
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1974 Starcraft Islander 21' Mark IV
Mercruiser 165hp Inline 6
GM 250ci - from a '74 Nova
Bored .030, Balanced, w/Hardened Exh Valves
Thanks kainon. The 18 is fine with me. I only had a 12 in the Jupiter and even that pretty much got the job done. The belly tank is nice but holy crap expensive!!!
heres my two cents whorth
I have a twenty five gallon
aluminum tank in an 18 foot
holiday I/O
made by a company named Florida Marine Tanks
check my bucket
maybe there still makeing them
not enough hours in the day to burn 25 gal
Depending on what you plan on doing. I have twin 18gal tanks and wish I had some more fuel on those 40+ mile round trip halibut fishing. I will burn 20-22 gallons and if the weather picks up with I had about another 5-6 gallons without carrying a spare can. However I have never needed more than the 36 gallons.
Otherwise I aways run about 10 gallons a day for a 9 hr day of fishing. 15 miles of running and rest trolling with the main motor. I have a 140hp chevy.
Even though I am not ready for that phase of my retro, I have thought about putting tanks under my floor. My question is how do I vent it so that it is safe and pass boat safety regulations? What did you guys do?
all the tanks have connections for a fill, vent, and suck (I don't know what that's called). You run a hose from the vent connection to a special vent fitting you drill into the side of the boat.
New Gas Tank
Linear Mode
