What Fuel tubing to use inside gas tank
Hi
I have just finished a Goldberg Super Chipmunk and a Evolution 61 engine flies it. The engine runs great. But at half tank I experience the engines dies after a nose down orientation. When i land i see air in the line and have to prime to start the engine again. The clunk in the tank tank does not fall down and follow the fuel, it is normal fuel tubing but it must be too stiff. So the clunk stays in the air when the plane dives. Is the clunk suppose to make a u and follow the fuel. Can any one recommend a solution, or a very flexable fuel tube i can use. I use a 12 oz fuel tank. Thank you for advice in advance.