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How big is my fuel tank?

Length x width x height + some other mathmatical stuff that Sim knows all about, if you can see the tank. If tank is not accessible, drain it into five gallon cans but don't use an electric vacuum like Fire Marshal Bill. Gallery shows 21 gallon tank?
 
freightguy said:
How can I find this out?
Click to expand...
I also own a 1988 Spectra 171 from which I removed the fuel tank last fall for cleaning and to install new hoses. The tank is now empty so when I fill it this spring I will know it's size exactly. I believe it's a 21 gallon tank based on Spectra sales literature I have.
 
Thanks guys, I thought it was a 21 gallon. When I was out using it this weekend my gas gauge started showing less than 1/4 of a tank so I headed in, but when I put gas in, it only took about 9 gallons. Must have a gauge issue.
 
freightguy said:
Thanks guys, I thought it was a 21 gallon. When I was out using it this weekend my gas gauge started showing less than 1/4 of a tank so I headed in, but when I put gas in, it only took about 9 gallons. Must have a gauge issue.
Click to expand...
If you pm your dimensions to JimPatroni he'll run the numbers for you.
I wouldn't even know where to begin.
When he was redoing the floor on my Liner somebody stole the gas tank from behind his (awesome) shop. We (and when I say "we" I mean "he") ended up getting a custom tank fabricated.
He worked outs the specs and capacities. Probably still has the program/formula.
 
Fuel tank Capacity formula

Multiply the width by length by height in inches the divide by 233, that will give you the capacity


I was given this from someone else on another site and have not proven it yet but going to try now.


Hope it works



Cap

Yes the formula worked for me or you can also multiply length x width x height in inches and then multiply the total square inches by .004329 I got the same answer.
 
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