ORIGINAL: tlan
Hi guys. Im about to install the engine(mds .18) and the fuel tank. I don't if I'm gonna need and overflow line for the tank. On the box says: "drill and use if it necessary" because it comes with port closed. And if do use it... won't the fuel leak when the plane is upside down or something. Please somebody help me out with this...Thanks.
I second what onytay said...I use two lines, the intake line and the muffler pressure line(for a glow airplane, that is...For a gas airplane, the pressure line becomes a vent line).
If you do end of drilling the port out and using it, seems to me that the muffler pressure wouldn't help the fuel get to the engine, since the tank would never pressurize.
Good luck!