SOHC.co.uk Forums > Project Board
1967 CB450K0 Black Bomber Rebuild - By Royhall
AshimotoK0:
No worries but it's at work and I am only in there Wednesdays so I will send it then
royhall:
Thanks Ash. Send it next day delivery and let me know what it costs and I will Paypal it to you. MyHermes "next day" is a very good service.
royhall:
Ash has kindly lent me some rotors from an early K0 and a later model. Along with my existing two, I have compared the relationship of the keyways to the timing marks along with the overall dimensions of the rotors. Except for the starter sprag clutch changes the rotors are all identical. I guess that rules out the rotor change for the 15 degree strobe error. Tomorrow I shall remove the electronic ignition and refit the points and condensers to see if that will rule out or implicate the Pamco system. Is it possible that a faulty strobe light could be to blame, after all it shows 15 or so degrees out when it's running fine?
Ash, did you get a chance to check the cams for differences.
AshimotoK0:
--- Quote from: royhall on January 22, 2021, 03:40:14 PM ---Ash, did you get a chance to check the cams for differences.
--- End quote ---
Problem is I am furloughed from where I work for 3-months (Yipeee! ;D ;D) and that's where all of my (their) decent measuring gear is.
I have tried my best as follows with the crap I have at home. The cams were positioned with the peak of the lobe at 12 o'clock.
This reminds me of when I was in a hotel room Shanghai in the early 90's.... our Chinese vendor at the 11th hour presented me with a mountain of failed PCB modules and all I had to test them with overnight was the 9v battery out of the TV remote, the HB lead out of the hotel freebie pencil (to use as a variable resistor) and my trusty Fluke 77 mulitmeter. Sure impressed the Chinese guys though once I got it sorted.
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royhall:
They look the same then from a timing point of view. That rules out another possibility. The crank build is also ruled out as TDC is correct on both left and right cylinders. Will change it back to points over the weekend. That in itself is not straight forward as the loom I made for it does not have connectors. Needs to be done though to check the electronic ignition. There's a whole load of problems reported online with the Pamco.
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