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#1
03-14-2017, 06:21 PM
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Very interesting. My coffin has a 48 inch deck under it, not 60 inches. I wonder if having 12 inches of tank length unsupported would be a problem?
I have about 8 1/2 inch of depth to work with in the coffin, and a tank height of 7 3/4 is possible, because once the tank is under the lip of the lid, the under deck clearance rises to 9 1/4 inches. 
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#2
03-14-2017, 07:05 PM
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Using the 48 inch length I made my mock-up, I calculated the total theoretical capacity at 33 gallons, but I would like to get a few more gallons in capacity if possible.
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#3
03-15-2017, 04:14 PM
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Quote:
I would just extend coffin deck with some 1/4" PVC or starboard. To maximize fuel capacity with the available space, one way would be to install a bladder tank, if you can find one with the right dimensions, although that may be a long shot. The other way would be to install 2 tanks that would each fit thru the hatch without having to tilt them, which would allow you to use more of the vertical space. (The OEM tank just barely fits thru the hatch, so Moesly designed it very carefully! I'd recommend modifying your mockup to those dimensions to verify fit before ordering one like it.) Before going the 2 tank route, I'd do some calculations to see how much of an increase you could get to see if the extra cost/work is worth it. On my Bahama trips with the old carbed gas guzzling 2S motor. I typically carried at least 24 gallons on deck in 6 gallon tanks and jugs, which was enough if we refueled at West End or Walkers. However after we couldn't get gas at Walkers one year, (fuel barge had not shown up and they didn't know when he was coming!) I started carrying about 80 gallons, which was enough to run all the way to Green Turtle. The E-Tec has proven to use about 50% less gas however, so fuel situation would be much better with current motor.
__________________
'72 SeaFari/150E-Tec/Hermco Bracket, owned since 1975. http://i188.photobucket.com/albums/z...Part2019-1.jpg
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#4
03-26-2017, 04:10 PM
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Thanks to Bushwacker!
At Denny's suggestion I modified my tank mock-up to the OEM dimensions Denny provided, and lo and behold, the mock-up fit first try.
So now, my theoretical tank capacity is up by 10% over my initial design. Might just make the difference between getting home, and not one day. Here are a couple of shots of the modified tank mock-up. It is amazing how much cutting and measuring went into a basic trapezoid shape! Now we will have to see how much the extra surfaces and welds adds to the price compared to a rectangular shape.
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#6
05-19-2017, 01:42 PM
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I hope soon - can't wait to introduce her TO a dock! Still have some more wiring, connect all the rigging to the motor, and the fuel tank should be done next week. Still hoping for a June splash.
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#9
05-20-2017, 10:17 AM
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Thanks, folks. As a side note, despite predrilling the rubrail screws, the strip of 3/4 inch plywood backer under the deck splintered in a bunch of places. I am thinking of mixing up some epoxy the consistency of peanut butter and troweling it on what's left to seal in the tips of the screws and prevent the rest of the plywood from flaking out. Then paint to match the rest of my inside hull (white). Any thoughts?
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#10
05-24-2017, 09:53 AM
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Wow, she's looking great!
The rub rail really came out nice. That's a project I need to tackle soon. Congrats on your haul of vintage collectibles. I found similar treasures when I explored the bilge, only with more spiders...
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You know it's gonna happen.....just when!!
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