G'day Widget,
Ah, OK.
It seems I should do a short tutorial for ODK, on 'classes of fit', in the mechanical sense, of the ways in which parts are precisely fitted together.
I'm not really in the mood to do that right now, what with hauling out references etc. , so watch this space...
But meanwhile, if that bearing is OK, there is absolutely no need to remove those spacers.
The bearing is fitted closely to the
shaft, and is designed to 'slip' into the crankcase half, as an assembly.