Mike,
Thanks a lot, good answer.
Everything you have described re rear hub makes sense.
Conclusion: What I originally thought was an issue, probably isnt (according to this thread, what a mechanic has told me after looking at it, and the following extract from another thread I posted):
Your description of "the rear hub has about 5mm of play, in the direction of drive" is, I assume, just play in the cush drive which is normal.
Your description of "hold top and bottom of rear driven sprocket, wiggle away and towards = play" is the play in the only bearing the sprocket carrier rides on. If that bearing turns smoothly and does not feel loose when you turn it with your finger in it, I would not worry about it.
You say "When replacing rear sprocket/hub assembly, it doesn't seat all the way in". The spacer between the sprocket carrier and the hub holds that small space between them so that they do not rub when the cush drive flexes.
Your description of the spacers sounds normal. Once the axle nut is tightened, the spacers including the long center one and the bearing inner races form a solid hollow shaft around the axle. The bearings can not move right or left.
|