RE: OS 50SX making a strange noise
Here's an update....
I ordered a set of Boca High speed bearings with the composite bearing cage for $34.90 shipped last Wednesday. I got them Friday and did the swap. I was a little concerned as the old bearings seemed fine. I installed the new ones and thought there was an improvement with just a little noise when the prop was moved quickly back and forth. I took it to the field today and after one noise free flight you couldn't hear anything when the prop was moved quickly back and forth.
Anyways, thanks for the help and good luck to those who still are having problems.
Jeff