The other day I wired up the HF1E using a modified Model T coil with screw terminals and mounted on the base. I tried starting her on QuickStart the other day, but she did not fire, not even once. After some reading and troubleshooting, I determined that the problem was the exhaust valve. It seems that the valve guide was not allowing it to seat correctly. I drilled a larger hole in the base of it, and that seemed to help. No I can actually feel the compression when I turn it over. However, the plug at the end of the spring gets stuck occasionally and sometimes it still doesn't seat. Despite that, I managed to get a few bangs as I turned it over today, so I know that I am close.
Charles Baetsen holds a Bachelor and a Master's degree in Engineering Physics from McMaster University in Hamilton, Canada.