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1967 CB450K0 Black Bomber Rebuild - By Royhall
Bryanj:
Way back when i used to have to repair the odd 750 and several 500 twin you could see the gear looked like a threepenny piece(only more facets) whilst new were like a crankpin grind
AshimotoK0:
--- Quote from: Bryanj on December 20, 2020, 08:07:20 PM ---Way back when i used to have to repair the odd 750 and several 500 twin you could see the gear looked like a threepenny piece(only more facets) whilst new were like a crankpin grind
--- End quote ---
Yes you are dead right Bryan.... One of the ones Jason sent me is like that and the one I just got from DK, I just checked and is almost as smooth as a crankpin. My original one is like Roy's ... smooth but obviously worn down BER.
AshimotoK0:
Here you go Roy the largest diameter one marked with a * is the one that has the Bryan 'three-penny' bit type wear. You can just about make out the indentations if you look closely at the surface of the hub.
The smallest one is obviously for the early starter clutch.
I will measure the later one from DK tonight for you.
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This is the picture close up of the fooked alternator rotor from my 1967 Bomber. Definitely thin tabs and all the way to the outer edge i.e not stepped in.
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royhall:
Thanks Ash. So I'm missing between 8 and 13 thou off my hub then, no wonder it doesn't work. Just got to try and find one now. I don't think the K0 rotor thing will ever be proven one way or the other, are you sure the Bomber hasn't been uprated at some point. The two small diameter rotors check out with part numbers etc, I wonder if Honda did a Delta part number at the end of the K0 life and changed it to the larger unit to avoid warranty claims. They have history for that stunt.
AshimotoK0:
If you want to borrow my complete assembly from DK to suss out what wrong I am prepared to loan you it Roy. Don't really want to unscrew the staked c/sink screws though.
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