[KTL]

Do you know for certain if the engine case has ever been apart before? Reason I ask is because someone could have split the case before and reused the bearings. A trick some use is to sand the plating off the back of the bearings to give them more "bite" in the saddle.

Nothing wrong with reusing bearings if they all look good. Especially since the quality of new bearings these days leaves a lot to be desired.