RE: Dissapointed in OS service
I had the same problem with a 46AX, however Hobby Services replaced the engine. I always ran the crankcase dry and used plenty of after run oil, 40 - 60 drops, after each flying session. My second engine quickly developed the same bearing rust problem and I did not have the heart to ask for another replacement. This time I replaced the bearings myself with stainless from RC-bearings. I have had an Evolution and currently haveSaitos and Super Tigre engines, for some reason the 46AX wants to rust bearings much more than the others. I like the engine, but do feel the factory bearings are very rust prone.
Brian