Welcome to ModelEngineMaker !If you have problems registering or logging in, please use the contact menu option to request assistance.
A couple of things that worked well for me on my engine.On the eccentric strap the print has you drill through the threaded rod connection point and into the strap so that the hole in the strap becomes an oil hole. I moved this oil hole around so that it is between the rod and the connecting bolt. This allows easier oiling and access to the grub screw in the eccentric so one can adjust the timing without removing the eccentric strap. ( Thank you Keith Appleton) Also with mod you can line up the grub screw hole with the oil port and fill it with oil, making it somewhat a reservoir.On the valverod to the flex joint connection I deleted the pin and made this connection threaded. I extended the length of the coupling so that it had plenty of thread length. My thinking was that as designed you could only adjust the valve position by one thread pitch at the eccentric strap and I wanted something finer. Once running I could adjust the valve position, while running, by turning the valve rod by hand and getting the best running that I could. These two changes made getting the valve timing and position very easy and for me it was a success.lgno neat sig line