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Old 06-16-2012, 11:41 PM
Bushwacker Bushwacker is offline
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Join Date: Feb 2007
Location: N. Palm Beach, Fl.
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Originally Posted by Back Sound View Post
. . . Does anyone know how many gallons that would be?
The density of gasoline is 44.9 lbs/cu. ft and specific wt is 5.87 lb/gal, so that works out to 7.65 gal/cu. ft if I did the math right. If the sides of your tank are perfectly rectangular, that would work out to about 6.93 cu. ft. using outside dimensions, or 53 gallons. Per the '79 brochure (http://www.classicseacraft.com/broch...ure/index.html), it may have a 47 gallon tank in it, but that may be for the O/B model. The tank in the Seafari is about 5 gallons smaller in the I/O model because of shorter length due to engine space. The top of my Seafari tank tapers down at the rear on top and the bottom tapers up at the front to allow for removal, so the sides are not perfectly rectangular. It holds about 34 gallons. Later Seafaris with a smaller step down into the cabin, starting about '74, supposedly had a 50 gallon tank.

You might consider having it pressure tested to check for leaks. That could save you the cost of a new tank!
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Last edited by Bushwacker; 06-16-2012 at 11:43 PM.
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