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« on: June 25, 2014, 12:23:29 PM »
This is a Waterman/Mitchell design. It is actually a neat system that does work well. The barrel valve has and idle slot in it and you can adjust the idle fuel with the mixture screw in the side of the barrel valve. Then there is a idle pill that is just to keep fuel in the float bowls for the accelerator pumps. When the throttle is opened the barrel valve moves to wide open. It does not have a window that gradually opens, it opens wide open and closes off the idle circuit. The other two check valves are a main and high speed. I was told to use the high speed and set it 10 psi above fuel pressure when engine is on convertor. What I would like to do next time out is remove the high speed and only use the main with a much larger pill. How does one figure out what the flow of two .070" pills is in one pill. My brain says well that's easy use a .140" pill. So I would like to figure that out because I think a .140" pill would flow more than two .070" pills. Hopefully this makes sense.