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1971 CB500K0 Resto 3/71 VIN 1000896
AshimotoK0:
I guess this is the SB kit Bryan.
http://www.ebay.co.uk/itm/HONDA-06241-323-000-CLUTCH-AND-SHIFTING-MECHANISM-MOD-KIT-CB500-NEW-NOS-/321209689797
Trigger:
--- Quote from: Oddjob on February 21, 2016, 06:05:30 PM ---Are you getting confused here Graham? the bearing which has disintegrated is one of the end caps from the gearbox yet the oil guide plate you refer to is fitted to the primary shaft, nothing to do with the gearbox at all.
I know the guide plate was the mod fitted to the later K0 and K1 engines and as such is worth mentioning in it's own right but not sure why you'd think the lack of it caused the gearbox bearing to fail.
Ash, I gather the bearing is off the countershaft as it looks like it, Honda did alter the design on this bearing for the CB550 engine by incorporating a small oil pump inside it, maybe this was because they had reports of the bearing failing due to lack of oil, would account for why they felt the need to fit the oil pump in there. Also I seem to recall that one of the 2 needle rollers has the rollers trapped inside the cage whereas the other had loose rollers which had to be assembled inside the cage whilst it was sat in the outer housing, no idea why Honda used two different designs for what is essentially the exact same job. I have both of these NOS along with 90% of the gears and both shafts as well, just missing 3 of the gears for a complete NOS gearbox.
Check the fork selector tips for burning or burring as well, they are pretty hard to find new or even in decent condition second hand.
I'll probably have a lot of the parts you need in a bin somewhere but whether I can put my hands directly on them is another matter.
--- End quote ---
I think you maybe right there Ken, I can not remember what parts you sent me now (too many engines ago) I know that the oil guide plate was missing on two of the 500 K0 engines that I built and one was that bad on the roller bearing that I needed to replace the shaft. Which, I think you sent me.
AshimotoK0:
Guess this is the mod on the 550 Ken.. Sure learning a lot today ...My brain hurts !
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Trigger:
--- Quote from: Oddjob on February 21, 2016, 06:36:34 PM ---
--- Quote from: Trigger on February 21, 2016, 06:32:23 PM ---
--- Quote from: Oddjob on February 21, 2016, 06:05:30 PM ---Are you getting confused here Graham? the bearing which has disintegrated is one of the end caps from the gearbox yet the oil guide plate you refer to is fitted to the primary shaft, nothing to do with the gearbox at all.
I know the guide plate was the mod fitted to the later K0 and K1 engines and as such is worth mentioning in it's own right but not sure why you'd think the lack of it caused the gearbox bearing to fail.
Ash, I gather the bearing is off the countershaft as it looks like it, Honda did alter the design on this bearing for the CB550 engine by incorporating a small oil pump inside it, maybe this was because they had reports of the bearing failing due to lack of oil, would account for why they felt the need to fit the oil pump in there. Also I seem to recall that one of the 2 needle rollers has the rollers trapped inside the cage whereas the other had loose rollers which had to be assembled inside the cage whilst it was sat in the outer housing, no idea why Honda used two different designs for what is essentially the exact same job. I have both of these NOS along with 90% of the gears and both shafts as well, just missing 3 of the gears for a complete NOS gearbox.
Check the fork selector tips for burning or burring as well, they are pretty hard to find new or even in decent condition second hand.
I'll probably have a lot of the parts you need in a bin somewhere but whether I can put my hands directly on them is another matter.
--- End quote ---
I think you maybe right there Ken, I can not remember what parts you sent me now (too many engines ago) I know that the oil guide plate was missing on two of the 500 K0 engines that I built and one was that bad on the roller bearing that I needed to replace the shaft. Which, I think you sent me.
--- End quote ---
Yeah I sent you the oil guide plate and probably the primary shaft roller bearing as well, was some time ago. I may have another one Ash if your desperate, I'll certainly have the neutral selector mechanism as I remember it sat in an old clutch casing along with a complete clutch. Don't think I sent that to you did I Graham?
--- End quote ---
No clutch parts or selector mechanism Ken, I think it was a roller bearing, the housing, a few small parts and a shaft mate. Think I may have some dog legs in good condition that came from a CB350 or something like that.
Woodside:
Saw this and thought of you
http://www.ebay.co.uk/itm/NOS-Honda-1971-1973-CB500-Four-COMPLETE-SHIFT-CLUTCH-KIT-06241-323-000-/252275993307?hash=item3abcd22adb:g:~kEAAOxy69JTGe6G
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