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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Assistance sought with a Rapide Clutch problem please
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<blockquote data-quote="BlackLightning998" data-source="post: 11065" data-attributes="member: 109"><p><strong>Twas not me......</strong></p><p></p><p></p><p></p><p>Hi Norman,</p><p></p><p>The scarring was just one of a number of mechanical maladies that we discovered when the bike was stripped to repair the damage caused by the cams and followers, a broken valve lifter linkage, the followers not eased and showing bright spots, loose everything under the kickstart cover, loose gearbox camplate locator not lockwired, broken ESA springs (4000 miles) and the list goes on. All this following a pretty expensive re-build.</p><p></p><p>I was pleased to see that the scarring was dull and covered with dust when I stripped the clutch this time (last time bright and fresh) so I suspect that this specific problem has been resolved. Additionally the assembly did not have the spacer washers (I think you use the ones from the timing side) over the pins - it does now.</p><p></p><p></p><p></p><p>What do I need to do next to spur on this potential modification process - I'd be happy to be the test bed as I can now easily see and understand the value of a parallel/square lift? Using my maths colleague at work to calculate the number of permutations for the 6 sets of springs and cups on the nine pins, then the additional possibility of putting small washers in the base of the cup to increase spring tension seems like a lot of work to get the same end result as the idea of the mini valve.</p><p></p><p>Isn't there also a possible modification of a larger centre to the clutch adjustor, incorporating a much larger ball bearing and a very much oversized head on the pushrod, so that the need for the non-fling chain lube is done away with by continuing to use the rotating nature of the ball bearing surface?</p><p></p><p>Additionally - what are your thoughts on my observations in reply to Tim about the calculation of "square" for my nut and adjustor mechanism mounted on the outer steel plate?</p><p></p><p>Regards and thanks once again for your help.</p></blockquote><p></p>
[QUOTE="BlackLightning998, post: 11065, member: 109"] [b]Twas not me......[/b] Hi Norman, The scarring was just one of a number of mechanical maladies that we discovered when the bike was stripped to repair the damage caused by the cams and followers, a broken valve lifter linkage, the followers not eased and showing bright spots, loose everything under the kickstart cover, loose gearbox camplate locator not lockwired, broken ESA springs (4000 miles) and the list goes on. All this following a pretty expensive re-build. I was pleased to see that the scarring was dull and covered with dust when I stripped the clutch this time (last time bright and fresh) so I suspect that this specific problem has been resolved. Additionally the assembly did not have the spacer washers (I think you use the ones from the timing side) over the pins - it does now. What do I need to do next to spur on this potential modification process - I'd be happy to be the test bed as I can now easily see and understand the value of a parallel/square lift? Using my maths colleague at work to calculate the number of permutations for the 6 sets of springs and cups on the nine pins, then the additional possibility of putting small washers in the base of the cup to increase spring tension seems like a lot of work to get the same end result as the idea of the mini valve. Isn't there also a possible modification of a larger centre to the clutch adjustor, incorporating a much larger ball bearing and a very much oversized head on the pushrod, so that the need for the non-fling chain lube is done away with by continuing to use the rotating nature of the ball bearing surface? Additionally - what are your thoughts on my observations in reply to Tim about the calculation of "square" for my nut and adjustor mechanism mounted on the outer steel plate? Regards and thanks once again for your help. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Assistance sought with a Rapide Clutch problem please
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