I've got an annoying vibration. When I set high power and lower the RPM below 2350 it becomes noticeable. Lower the RPM and it gets worse. By 2200, it's really bad where I can feel it in my feet. I won't go lower. Raise the RPM to 2400 and you can't feel it at all - even at takeoff power. At lower power levels, no apparent vibration.
I think it may be the baffle material just behind the prop governor. It's not hard up against the cowl and I can flop it when I reach my hand into the air inlet. I think the prop blast is smacking it around more and more as the prop pitch increases.
I'm thinking about running a little experiment and just remove that piece of aluminum and fabric baffle material. That segment of aluminum is fairly easy to remove. But I'm concerned about unintended consequences. Weather is cool enough that I don't think I'll have CHT issues - especially on a short flight. But can anybody think of any other issues removing this piece of aluminum might cause?
I think it may be the baffle material just behind the prop governor. It's not hard up against the cowl and I can flop it when I reach my hand into the air inlet. I think the prop blast is smacking it around more and more as the prop pitch increases.
I'm thinking about running a little experiment and just remove that piece of aluminum and fabric baffle material. That segment of aluminum is fairly easy to remove. But I'm concerned about unintended consequences. Weather is cool enough that I don't think I'll have CHT issues - especially on a short flight. But can anybody think of any other issues removing this piece of aluminum might cause?
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