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Dan, Let's clarify more, please. If you land after a flight and only fill the wing tanks, do you have the nose tank drain and overflow the wing tanks? Or If you fill the wing tanks AND the nose tank you get overflow? You should know, fuel SHOULD flow through the overflow pipe in the nose tank, back to the wing tanks. The fuel pump should, with the engine running, pump several times the fuel the engine could possibly use. The extra goes through the overflow back to the wing tanks. With the fuel pump running, you might get a bit of a "head" of fuel above the drain - maybe a fraction of an inch, maybe a bit more. Soon after shutting off the engine, the nose tank's level should stabilize right at the level of the overflow tube. If, as Hartmut suggested, the overflow tube on yours is a vertical pipe which broke off, then maybe it's draining down too far. More likely, I'd think would be for a small crack in a standpipe to leak slowly when setting but not be a factor when flying. The trouble is, I don't know the pipe arrangement on your plane. I don't know if the overflow is a standpipe sticking up from the bottom of the tank or if it's a pipe coming in from the rear of the tank. Your answers to the first questions will help a lot. Ed Burkhead http://edburkhead.com ed -at- edburkhead???.com (replace -at- with @ and remove ???) ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
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