Yep, that looks to be the size of it Dave. Spoke with someone at YS Performance and he indicated that the case should be sanded smooth. I'm just worried the case is scored too much. Will be putting the engine in the mail tomorrow

Is it appropriate to assume that the newer cages don't do this and that they are interchangeable with the older ones? The amazing thing is is that the engine actually ran (for how long?) in this state...long enough for the bearings to completely disintegrate. Gotta love YS

Oh well, have an extra Saito 120 I can put in its place until my beloved YS returns...not quite the same but adequate for now.

Cheers!

John