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Aluminum fuel cell for zodiac rib

38K views 207 replies 25 participants last post by  52 Ford  
#1 ·
View attachment 672BD58B-7FA9-4DB4-AD5B-54A2530B993B.jpg So I wanna make a fuel cell about 10-12 gallons. It will be made of 1/8” aluminum. I think it’s 5052 that I have. Hoping I can get some help on how many gallons these dimensions come out too? It will fit the front of the boat well this way View attachment 678A6637-0BD6-4E48-9E5E-B543A4F6B7B6.jpg so the tank will be 1’ tall. And not sure if I’m going to add the 5” sides at the back. Just a triangle may be enough. Thanks! I plane on building it this week. Planing on using rubber grommets for the bottom and Tieing it down to secure it and wanna add a net possibly to it on the front and weld on mount for fire extinguishers holder on it and rod holders and let it be a seat View attachment 68B3932B-8491-490E-9D57-F17659EDA449.jpg this was on the Columbia today
 
#4 ·
I did baffle from side to side. The vent is in the cap, the cap was mounted to the boat and a rubber hose runs from the tank to the cap. I think the cap was a simple motorcycle cap or the like from an auto parts store (or possibly ordered off line) came with the matching neck for the cap too.

The hole in the top was for a sending unit which was a cheapy bought of the net as well.

The owner put the tank at the front of the boat obviously, the twin batteries right behind it and a seat/deck over the whole deal.
 
#5 · (Edited)
I was thinking about doing a clear hose from the top to bottom to see fuel level. I like the dirt bike style with hose hanging down. I’ve seen some with breather holes under the outside edge of the cap where u grip it with your finger but little closer in. I might even make a cap on the lathe. Haven’t done much lathe projects lately. I’ll go check the auto parts store or online also
View attachment 0ECCB1C1-488A-401E-B134-FC088982F0C9.jpg I like this style. I could get the tension perfect on the honing machine.
Did u weld the inside?
 
#14 ·
Hey Moto, just lookin at the picture of the boat & you, are you sure you got the motor trimmed correctly?
 
#16 ·
Yeah that picture looked like you were ready to take off! Were ya puckered a little?
 
#22 · (Edited)
I was going to post a picture but my phone died while I was out there messing with the trailer. It is an 18.6” Charger Bass Boat practically identical to a champion bass boat. Charger did a few things different on their boats like looping the live well circulation around the ice chest to keep the live wells cool for happy fish.

Here is a video of me releasing a couble black bass here in Stockton on the Delta. They were stored in the driver side live well. Fish kept poking me with their dorsal fins thats why I was owing so much.

https://m.youtube.com/watch?v=hDxoTGTI3P4
 
#23 ·
Just an FYI. Anyone making fuel tanks for boats might want to search for the coast guard regulations governing fuel tanks, especially if you are building one for a customer. They don't allow fittings anywhere in the tank except the top and the manufacturer is supposed to be certified. I think built in tanks are also supposed to be in the back half of the boat. Could be a liability if there was ever problem with a customer's tank.
 
#29 ·
Moto, what size motor is on that boat? I may have missed it but it looks fair sized. At one time I had a 10 foot inflatable with a 10hp Johnson that I used as a tender for a larger boat. The inflatable was rated for the engine but it was still way too much power and the engine was heavy as hell. A 5-8hp would have been ideal. Riding wise, I don't believe you'll get too much relief with the fuel tank in the bow.
 
#34 ·
I bet it was the part about exercise that turned her off to the idea. You weren't supposed to let them know about that part. Maybe the younger one can still be persuaded to try it, if the other doesn't dissuade her first. If the youngest get's up on a pair and enjoys it, then the older one will want to try it eventually. Can they roller skate any? Knowing that helped me greatly. I tried skiing one summer, but not too great, but over the winter I learned how to roller skate, and the next summer I got up and did great. I guess it was from learning how to control my feet and legs with something slipping around under them.