After reading this thread I didn't see any mention of the no vibration, that is what the jar of water was sitting on the stand for. that in itself too me is pretty amazing compared to the gas engines we have now. I think it's great what this guy did and being an engine nut I like all and any engines.
Same here. I toyed with the idea of getting a lathe and whatever tools needed to try basic machining in the past. But then I would never fly my planes again. Not to mention I am already out of space. My engineering skills are more related to controls than machining anyways. It would only be basic hacking.