Looking at the piston sleeve the engine doesn't look new. I see some piting on the piston and massive rust on the bearings. Usually a engine doesn't rust up like that with in 2 months unless you live in a very humid climate. Moisture can cause that kind of rust, but not like that unless the engine was submerged in water or left outside in the rain with no lubrication what so ever. I use Mystery Oil or After Run Oil if the plane is going to be stored for more than 3 months.

Did that engine come off a R/C boat or Float Plane?

Sorry about your engine. You might be able to E-bay those parts you need, might be cheaper that way than to order your parts from Tower or O.S. I have a mint condition 1984 O.S. FA 120 - Before Surpass ( Looks like a Saito). I still can get the internal parts for it, but if I damage the case like you did, I would have to look in the swap ads or E-bay for it.


Pete