>From what I can tell, this is perfectly normal for this engine. My C-90 does the same thing. The kinda primitive engine mounts make it worse. Was the original engine smooth? How did you do it?
David Roger Carson wrote: > > Recently changed C-85 engines which now has approx 80 hours. Always getting > a vibration on the recently installed engine between 1800-2200 RPM only as > well as some vibration on take-off climb out. At or above 2200 runs smooth > and below 1800 runs without vibration. Anyone have any ideas.
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