Postby Willie » Sun Jul 23, 2006 7:42 am
Open for discussion, but what I think is: With high wing aircraft and gravity, where the carburetors are mounted on top of the engine. The only thing stopping the fuel from entering your sump, past the rings, are the needle and seats in the carburetors. So when the motor is not running the fuel cocks should be selected to the off position for both tanks. On the Continental and Lycoming motors that is not an issue, as the carburetors are below the sump and fuel can not enter the sump. I know lots of pilots, including myself, leave the tanks open because you my forget to open them before takeoff and get an engine failure on or just after takeoff. In this case the Triboligy lag proofed that there is a small amount of fuel present. With the fuel cocks closed on the Bushbaby I found the one tank still overflow when parked at an angle. This indicates to me that those valves are not working properly and Louise needs to take them off to be tested. I could tell you this at the Hanger but want to test the Forum’s remarks
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