Hi Netter's, After pretty exhaustive investigation on the engine and mount, it appears we rebuilt the engine just for practice. We couldn't find anything wrong. The prop was never initially considered because it had recently been repaired, refinished, and balanced. Once installed, it was the smoothest it had ever ran.
The vibration became progressively worse which is what led me to believe the bad crank. With all the engine investigation completed, that leaves the prop. We set it up for a static balance and was very surprised to see it was significantly off balance. More so than it ever was when the initial rebalance was performed after the repair. The only thing we can think of is that there was still a lot of moisture in the blade that was water damaged during the flood. Once the plane was flying again, the moisture was spun out of the prop, throwing it off balance and making the vibration become progressively worse as it dried out. The prop has been stripped down and balances almost perfectly without any finish on it. I am hoping to have it refinished and back on the plane for testing this weekend. I'll post the final results of the testing. Steve Glover KR-2 N902G AJO, Ca <kr...@cox.net>
