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Old 04-07-2015, 10:22 AM
ric8138 ric8138 is offline
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Default Not a Classic/Off topic?

Hi all. Doing some work on a 20' 2000 SeaCraft, HIN# SXCRB697A000 and I am hoping that you all might be able to point me toward some info on this boat. I realize that this forum is for the early years, TRUE SeaCrafts but I have not been able to Google up anything on the more recent model boats. Specifically I am trying to figure out the fuel capacity without running it dry and then filling it back up. The spec plate on the tank is rusted away. An original dealer brochure would help a lot with weights, capacities etc..Thanks!
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Old 04-07-2015, 02:06 PM
ocuyler ocuyler is offline
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How about measuring the tank and calculating the volume? I use an app called "Tank Volume Calc".
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Old 04-07-2015, 02:09 PM
pair of jacks pair of jacks is offline
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Default 20 SeaCraft 2000

I have a bunch of older brochures- attached is pic for the 20- it holds 70 gallons of fuel- both the 20 Master Angler & Classic have same fuel capacity
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Old 04-07-2015, 02:35 PM
gofastsandman gofastsandman is offline
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My 89 20 sf is 47 usable. Think 70 was optional
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Old 04-07-2015, 03:44 PM
otterhound otterhound is offline
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My '89 SF20 was 70 gallons as well.
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Old 04-07-2015, 03:48 PM
pair of jacks pair of jacks is offline
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Default 20 SeaCraft 2000

Yeah, In my brochures from the late 70's the 20's fuel capacity is listed as 47 gallons but in the newer boats all my info/brochures state it's 70 gallons so things changed from 89 to 2000. the pic I attached is the 2003 brochure but the info is the same for the 2000 brochure I have.
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Old 04-07-2015, 09:51 PM
SteveH SteveH is offline
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my 1978 20 ft master angler had a 70 gallon tank. If memory serves my dad upgraded to that when we ordered the boat brand new…. It was a perfect size for the boat… If yours has a 70 gallon tank, it is all you need. 47 is just not big enough in my opinion.
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Old 04-08-2015, 08:41 AM
FishStretcher FishStretcher is offline
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There are 231 cubic inches to the gallon. So a 7.5-8" tall x 24" wide by 60" long is 40 something gallons on the potter hulls, maybe as much as 47, but replacements are often 10% smaller (mine was), depending on air volume and height. In that space, there was room to push forward at about an additional 8-9 gallons per foot.

Very roughly, 5 feet long is under 50 gallons and 8 feet long is under 80. Not sure that ratio would hold on a later boat- a taller tank under a raised deck could hold lots more per foot of length.

Or you can do the math, if you can measure it accurately.
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Old 04-08-2015, 09:31 AM
Islandtrader Islandtrader is offline
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Quote:
Originally Posted by ocuyler View Post
How about measuring the tank and calculating the volume? I use an app called "Tank Volume Calc".
The formula is:

HxWxL /231 (inches)

Example 10 h 20 w 60 l divided by 213 = 52 gal...aprox.
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Old 04-08-2015, 09:51 PM
SteveH SteveH is offline
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Those formulas are great but they are not at all helpful if his tank as inaccessible as mine in my 2000 23 ft sea craft. You might get one or two of the measurements, but not all three. Just my two cents.
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