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.
Received alot of ideas and alot recommended that we move the prop one hole and try, etc. Since alot said this we thought this would be the first thing to try. Worked like a charm....Still have some roughness between 1900-2100 but can live with that. I can atleast now view my GPS without holding it because of the vibration. Many thanks to all who replied.
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