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Achim,You need to verify valve opening and closing degrees to determine the correct valve duration. When things don't work as expected, it is a logical place to start looking for the problem. Nominal durations: I - 200, E - 220 with no overlap at TDC.Jeff
Your new carbs Looks very successful Depending on the shape of the cam the opening and closing points of the valve can be significantly affected by the valve clearance. Can you easily increase the clearance of a pair of valves and measure the timing again?
Great news Achim; Looks like not only I have been watching Mike's valve event drawings.
I think we all understand where work is done, the energy consumed will result in heat , so it is most realistic to see steam exiting the water Cooling Tower [and tank] in a model combustion engine plant.....We also saw this in the January the 22nd clip, I just didn't mention it Do you mean that 95 degrees is the intended max operating temperature of the engine, or that is the limit of the cooling water system? [it appears that the probe of the thermometer is at the lower level in the water tank?] .... just beautiful AchimDerek