tim220225: That is a very good looking job you did on that engine. Also a very good job on explaining about the possible breakage. Do you plan on the same set-up even if you cut and re-tap crankshaft for right hand threads? I am wanting to get to another project. I will put the Echo on shelf for now. I have 2 of them and will take one to the next swap meet. I want to trade Echo 2400T off and get a big Moki or something simular. I plan to make a gas head and see how that works. There is a place that will install needle bearings in rod. May even try Gas/glow in one. Just want to try something else right now. Capt,n