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JC3 Fuel Tank Filter

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Active Member
Supporting Member
Oct 2, 2022
Reaction score
Eagleville Tennessee
I have emptied my 12 gallon tank and have a couple of questions. 1. I got a look at the "finger" filter at the fuel port that feeds the engine and it is extremely dirty. With a flashlight into the tank from the filler I see that it's replacable screen is pretty clogged with what appears to be a sort of dust. Has anyone replaced the screen filter (aka strainer) in the tank. According to the Univair catalog (online p41 parts catalog) it should be a simple job.

2. I see from my photo that the tank has quite a bit of the gray-crap that might have come from dirty fuel or some secret junk. Is this known to anyone? I'm adding a photo so that no one has to decode my descriptions. Univair part is U72091-000.

3. Does anyone have an idea of a practical way of cleaning the interior of the tank without removing it?

John Hettish, always attempting to learn.


  • Fuel tank JC3 from Spout.jpg
    Fuel tank JC3 from Spout.jpg
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  • JC3 Fuel to Engine port.jpg
    JC3 Fuel to Engine port.jpg
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