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New (to me!) '77 CB400F - US model
Bryanj:
By the time you have the bearings out, and the way you have to get them out does them no favours either, you may as well buy generic and replace them
mattsz:
--- Quote from: Bryanj on April 27, 2020, 07:38:27 PM ---By the time you have the bearings out, and the way you have to get them out does them no favours either, you may as well buy generic and replace them
--- End quote ---
Thanks! I figured they were a consumable item - but I've had a couple of bikes with some bearings that had a cleaning and regreasing maintenance schedule. Not wheel bearings, though...
What do you think about the stuck sprocket bolts, Bryanj - leave them for now, or try to force them out?
Bryanj:
Never had that problem, but also havent done many 400 since i left trade 40 yrs ago!
Unless Julie knows different i would be tempted to leave them alone unless they absolutely have to come out
mattsz:
I'm cleaning things up - there's a thick coating of chain lube all over everything on the left side, so I decided to remove the swing arm for better access. It came out easily, but took a long time to clean up using just mineral-spirits soaked rags!
Should the "pivot tube" (which the big bolt goes through) rotate in the swing arm? I see the grease fitting - what's inside there? If I start adding grease, will it come out the sides around that tube?
mattsz:
Speaking of removing the swing arm...
I discovered another bodge when I was removing the shocks - the upper mountings for each one are different, and neither has even close to the correct hardware. I think the left shock may be done for, it looks like oil has been leaking out:
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The right side has a bizarre collection of hardware - a thin brass washer, a too-big threaded nut (looks like the type that secures an electrical switch in a panel) serving as a spacer, a knurled threaded "nut" (looks like something removed from a table lamp's electrical fixings) also serving as a spacer, then - finally! - an acorn nut:
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The left side frame mount doesn't even have a threaded stud - there's a threaded hole where the stud should be. A bolt and two spacer washers secure the shock. I wonder if it broke and someone drilled and tapped for the bolt, the thread isn't the same as the stud on the right side:
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Any reason to be concerned about this for the time being?
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