Aluminum fuel tanks
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Aluminum fuel tanks

  1. #1
    I like to turn wrenches
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    Default Aluminum fuel tanks

    I hope you guys aren't getting tired of me asking questions. Its been years since I've "talked" with anyone about V-drives so I've got a lot of questions.

    My 1972 project Stevens doesn't have tanks. I've looked at one of the hi-perf boat part websites and I couldn't believe how much a pair of aluminum cylindrical gas tanks cost !

    Is there any reason why I couldn't use a pair of these 14 gal tanks for buggys?

    http://www.dansperformanceparts.com/...buggyfuel1.htm

    DPP-1040E is a 14 gal tank for $156. A pair would be $312 for a total of 28 gals of gas. Seems like a fair deal to me. Is there any reason to stay away from buggy tanks?

    BTW, I realize these tanks use a screw on cap on the filler neck whereas our boats typically use a 2" hose going up to a nice aluminum gas fill on the top.

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    Senior Member superdave013's Avatar
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    the only thing is the USCG likes the pick up to be on the top of the tank in boats. But other then that, I've seen them used before.

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    Quote Originally Posted by Homez View Post
    Tanks show up from time to time in spam if you don't need them now hang out and you might see a deal- any pics of the Stevens?
    Yeah, I've got plenty of time before the Stevens will be needing tanks. I'll keep checking the spam section to see what turns up.

    I'll try to scan some "old school" pictures and post them later tonight.

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    Quote Originally Posted by superdave013 View Post
    the only thing is the USCG likes the pick up to be on the top of the tank in boats. But other then that, I've seen them used before.
    That makes sense to me. My 1973 Sanger has two 11 gal aluminum cylinder tanks. When I redid the fuel system back in 1993, I installed a Holley electric 160gph pump. It needed a return line so I used the top fittings for the pump return. I've got a T-fitting to split the return to both tanks.

    I had a shop weld in a -8AN fitting into the bottom of each tank for the pump feed. The pump has two inlets.

    Maybe if I got questioned I could talk the CG into believing the top lines were the fuel pick up lines .

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    Senior Member boat 569's Avatar
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    Try www.coyote-gear.com for aluminum tanks.

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    Quote Originally Posted by dannyual777 View Post
    I hope you guys aren't getting tired of me asking questions. Its been years since I've "talked" with anyone about V-drives so I've got a lot of questions.

    My 1972 project Stevens doesn't have tanks. I've looked at one of the hi-perf boat part websites and I couldn't believe how much a pair of aluminum cylindrical gas tanks cost !

    Is there any reason why I couldn't use a pair of these 14 gal tanks for buggys?

    http://www.dansperformanceparts.com/...buggyfuel1.htm

    DPP-1040E is a 14 gal tank for $156. A pair would be $312 for a total of 28 gals of gas. Seems like a fair deal to me. Is there any reason to stay away from buggy tanks?

    BTW, I realize these tanks use a screw on cap on the filler neck whereas our boats typically use a 2" hose going up to a nice aluminum gas fill on the top.
    --------------------------------------------------------------------------------

    Try www.coyote-gear.com for aluminum tanks.

    Any of these aluminum tanks should work well. I would just modify them as needed with the 2" aluminum neck for the filler, located where you want it, and with a pick up into the top with a pick up tube. Anybody that has a TIG welder could easily make the mods for you and you will be good to go.
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    Homez, I just found a couple of pics of the Stevens but it's late so I'll scan and post them tomorrow.

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    Ike
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    Well the first question I would ask is what grade of aluminum is it? Aluminum used in boats and tanks has to be tough and durable highly corrosion resistant. The grade of aluminum used in the marine environments is usually in the 5000 and 6000 series. Tanks should be 5052, 5083 or 5086. The reason, without getting into chemistry and metallurgy, is that these aluminum series are very corrosion resistant and least affected by salt water and other corrosives found in the marine environment.

    Second is of course what was already mentioned. On gasoline tanks for boats all the fittings have to be on the top of the tank.

    Here's some recommended reading on fuel systems and tanks. http://newboatbuilders.com/pages/fuel.html

    Last but certainly not least is, do they have to be cylindrical? You can get some good off the shelf marine aluminum tanks that are rectangular. Here are some links. There are others. Do a search on the internet.

    http://www.floridamarinetanks.com/
    http://www.rdsaluminum.com/
    http://www.sptanks.com/webdev/links.htm (they also make custom tanks)
    http://www.custommarinefueltanks.com/
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    I'm No Expert Shaun's Avatar
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    I'm looking for some small tanks for my mini, website i found is www.coyote-gear.com also. I have not talked to them yet but you can have them customize the tanks, add extra things like extra ports, baffels, etc... You could probably have them put the pickup in the top too... Call and talk with them.

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    It appears to me that the Coyote tanks and the tanks from Dan's in my first post are the exact same thing. Not 100% certain but it looks like they are.

    As far as the fuel feed line being on the top, Dan's offers this option for $36.95: DPP-PICKUPTUBE-ADD INTERNAL PICK-UP TUBE with a picture of a bung on top of the tank.

    Even if I had one of these feed tubes installed in each tank, I'd still be paying less than half of what the hi-perf marine website wants for a pair of cylindrical tanks.

    posted by Ike,
    ....Last but certainly not least is, do they have to be cylindrical?.....
    Yes they do since I'm trying to make this boat look like the typical v-drive, flatbottom boat. I don't know what kind of aluminum they're made of but a quick call to Coyote or Dan's can solve that.

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    Peter, I just took a second look at your link (http://newboatbuilders.com/pages/fuel.html) and it talks about a "permanently installed" tank.

    Are our tanks permanently installed? I know they're bolted in through the bottom and have the aluminum fills on the top of the hull but are they truly considered permanent? I think that they are but then again, it's not like they're buried and enclosed under the floor or deck of the boat.

    Just thinking out loud and asking questions .

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    Remember anything that has the word marine in it is double the price....

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    Quote Originally Posted by Shaun View Post
    Remember anything that has the word marine in it is double the price....
    You got that right, Shaun !

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    Homez, here are those pics that I promised:

    The Stevens covered in urethane primer. Its been so long that the primer is going to have to be sanded off and reapplied........along with more body work . Thats my 1973 BBC Sanger runnerbottom in the background.


    Interior shot of the Stevens


    This picture has a piece of plywood covering the old, original junk yard 400SBC. I removed and sold it yrs ago. I'm planning on using the way more stout 406SBC out of my Richmond Gear 6-speed 1980 Z28. You can see some of the original orange paint on the bottom and the hideous bench seat on the front of the ugly trailer.

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