Hey Y'all,
I have researched the forums, Lycoming and Mooney manuals, Insight engine monitor manual, and elseware to determine the proper way to lean a carburated O-360 engine on a 1963 M20C. Thought I had it figured out, then read something that made me question myself.
Rather than ask for everyone for their techniques, I thought I would tell you mine, and let you throw stones and recommendations. I should add, I have had the plane for over two years, two annuals with no troubles or issues with the engine, oil or plugs. Here goes.
Taxi in and out--lean aggressively--full rich for run-up
Takeoff--full rich, unless DA>3000 ft
After Takeoff--Gear up--power back to 25/25
Climb-lean to 100oF < peak
Cruise--50oF<peak
Decent--Enrich as required
Land--full rich
CHT always <400
Please give me your opinion, it seems to work OK, but I am always open to suggestion.
Thanks,
Jerry