Can you please advice me if I should change the ball bearings on a propdrive 42-58 500kv 60w engine after it hit the ground. The engine still works fine, shaft
straight, lots of power, everything ok but when I hand spin the prop some slight noises are heard. You can barely hear it.. I think it's the front bearing, what could had happened inside it? should I change it? The rear one I
couldn't find on my local store or hk. What could happen if I don't change it? How can a bearing go wrong? What happens to them? And what can happen if I oil them and let them there?
Thank you!