[quote]ORIGINAL: ro347

I have an OS 46ax which I havent used in almost 2 years. Last I used it, it wa relatively new, about 6 months old. In preparation for one of my winter builds, I was looking through the exhaust port and noticed some grainy particles sitting on the piston head. So I decided to take the engine apart just to cean it all up before I ran it again. Well this is what I found - see pics. I dont have engine rebuild experience so dont really know if its anything to worry about. Seems like very light corrosion on the back plate, crankshaft and rear bearing. How can I correct this? Could I just sand down with very fine sand paper or dremmel, would I need to replace? Any help would be appreciated. Im assuming the rear bearing will need to be replaced.


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P.S. HOBBICO after-run oil sell's for @ $2.50 a bottle plus shipping.....hobbico is only one of many companies that make it......i usually buy 4 at a time and make it an even $10.00 and to take advantage of combined shipping charges....i get mine from tower hobbies.....just a thought.....KOOLKRABBER47.....