I have attached a blow-up of the seal area on this SB. There is something on the crankshaft that could be a circlip on the picture. The reason I didn't think it was one was that I looked at that part of my own 60102 and it looks like a complete circle: I can't see the break that there has be in a circlip. However I admit I can't see mine very well, because there is a blade plate cover of about 15" diameter right up against it. So, is there a circlip on the crankshaft, adjacent to that seal? If you aren't sure, can we have a couple of closeups please (like the one attached but showing more detail, and showing all the way around the circumference).