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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Starting Problem - Series 'C' BIG Single
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<blockquote data-quote="oexing" data-source="post: 158150" data-attributes="member: 1493"><p>Bill, I cannot add much of advice - or screaming - as I have not seen the conditions of all parts assembled at present. No, I don´t think the torque on the ESA nut will help much in case of loose splines. The torque shocks from crank or via belt and gearbox will most likely be more than you can put into bolting up the lot. I think the only way to keep you happy with that place is to get new spares with perfect fits in splines. Would not be a dramatic thing if one of the specific splines was not the crank mainshaft. </p><p> Another thing is the dry conditions with belt drives: As we have seen the completely wrecked splines on belt pulley and crank in dry primary drive in obviously short use I am not quite clear what to recommend for prevention. Maybe a quality chain grease on splines on assembly could be helpful, or some antiseize like copper paste or MoS2 paste as I like a lot more, applied on splines might help fight any additional wear in dry conditions - when there is no way to produce an assembly with nil clearances . Big question is how to secure the lot on its place: I´d hate to see wear in the ESA nut thread and on the thread of mainshaft from fretting all the time. So I´d go for Loctite, low or normal strength , for keeping a chance to undo with common tools. So when locking that, there will be some more places left moving in fractions that will see some wear in time. Again, periodic chain grease might help to fight wear. Anyway, not a happy condition in the long run when you don´t decide on a radical operation.</p><p></p><p> Vic</p></blockquote><p></p>
[QUOTE="oexing, post: 158150, member: 1493"] Bill, I cannot add much of advice - or screaming - as I have not seen the conditions of all parts assembled at present. No, I don´t think the torque on the ESA nut will help much in case of loose splines. The torque shocks from crank or via belt and gearbox will most likely be more than you can put into bolting up the lot. I think the only way to keep you happy with that place is to get new spares with perfect fits in splines. Would not be a dramatic thing if one of the specific splines was not the crank mainshaft. Another thing is the dry conditions with belt drives: As we have seen the completely wrecked splines on belt pulley and crank in dry primary drive in obviously short use I am not quite clear what to recommend for prevention. Maybe a quality chain grease on splines on assembly could be helpful, or some antiseize like copper paste or MoS2 paste as I like a lot more, applied on splines might help fight any additional wear in dry conditions - when there is no way to produce an assembly with nil clearances . Big question is how to secure the lot on its place: I´d hate to see wear in the ESA nut thread and on the thread of mainshaft from fretting all the time. So I´d go for Loctite, low or normal strength , for keeping a chance to undo with common tools. So when locking that, there will be some more places left moving in fractions that will see some wear in time. Again, periodic chain grease might help to fight wear. Anyway, not a happy condition in the long run when you don´t decide on a radical operation. Vic [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Starting Problem - Series 'C' BIG Single
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