Can someone explain how the fuel vent airline is supposed to prevent siphoning of fuel.
I filled the airplane for a long flight yesterday. The fuel level was mid way in the neck. During the day the fuel expanded and started the overflow, apparently it became a siphon with the overflow line. This morning it took 2 gallons to top off the tank.
I thought the air vent line was supposed to eliminate this.
I filled the airplane for a long flight yesterday. The fuel level was mid way in the neck. During the day the fuel expanded and started the overflow, apparently it became a siphon with the overflow line. This morning it took 2 gallons to top off the tank.
I thought the air vent line was supposed to eliminate this.