Dear Fdr
Thank you so much for your thoughtful and detailed response...
The propeller does not fine off when this is happening.
The only time l can tell that the problem occurs is when I change the power setting with my throttle control. The rpm will follow my throttle movement, instead staying constant where I set it: When I increase manifold pressure, the RPM goes up, and when I decrease manifold pressure, rpm goes down... so I’m flying a fixed pitch propeller and am adjusting RPM with my throttle control. When I move the propeller control knob, nothing happens...rpm does not change.
After several minutes, or after I land and take off again, the governor comes back on line.
What I don’t understand is the increasing frequency of this occurrence: it was starting to happen more and more frequently with my old governor, which is why I sent it in for testing, and it is increasing in frequency with the new one also.
Why could that happen?
Thank you again
1greenmachine