Fuel Tank Placement
Gentlemen: Recently I had an interesting problem with several glow engines. The symptom was that the engines would start and idle well but the minute the throttle was opened the motor would die. After looking for air leaks, etc. I think I've discovered the problem. Tthe gas tank, although located properly with-respect-to the spray bar, was improperly positioned. As I understand it, the spray bar should be 1/2 the distance up the gas tank height as seen from the side, ie, this is the positioning for the tank. However, with this configuration the engine is supplied with a gravity feed fuel supply; as we say in the NAVY, the tank beomes a, "HEAD", tank. With this configuration, opening the throttle provides a super rich mixture cooling the glow and stalling the engine. Lowering the tank so the engine must demand fuel (seemed to) cure the problem. Incidently, the low speed idle was set correctly. Has anyone experienced this? I suppose the now the engine would run rich inverted, eh? What is the correct answer with-respect-to gas tank height? Comments??