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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Five Speed Gearbox, Clutch Shaft and Carrier
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<blockquote data-quote="oexing" data-source="post: 170991" data-attributes="member: 1493"><p>The thing with the BMW - or other brands - type shift detent was a matter I read in this forum when it deals with slick gear shifts on Vincents. So I studied the gearbox components for a long while and did not like the camplate sitting on the selector forks plus the pointed spring loaded pin that engages in the camplate vees. So then I bolted the camplate UP onto the alu block that is often found to be cracked. So no standard camplate pinion in my bikes. </p><p> The detent pin was not my kind of design as it gets high side loads when shifting gear and does not want to move in its bore when it is a bit short and the bore not very deep, causes some friction from this. So that is why I wanted a lever for detent, like on other brands. The camplate is mostly standard, just I did some hard welding in a few places when I found there could be a bit more engagement of drive dogs. I don´t use jigs for checking gear positioning on all bikes as on most you can assemble all components in one side and see engagements for all gears to be acceptable, with a dentists mirror in doubt. So maybe this could be helpful for assembling gearboxes. And yes, I have only one ball bearing next to the clutch imperial standard, all other bearings are modern roller bearings with fits changed to metric o.d.s and inner races i.d. ground to go with imperial gearbox shafts. Roller bearings with rollers and cages in outer race plus plain inner races are very nice for assembling an engine. </p><p></p><p> Vic</p><p>[ATTACH=full]58923[/ATTACH]</p><p></p><p>[ATTACH=full]58924[/ATTACH]</p><p></p><p>[ATTACH=full]58925[/ATTACH]</p></blockquote><p></p>
[QUOTE="oexing, post: 170991, member: 1493"] The thing with the BMW - or other brands - type shift detent was a matter I read in this forum when it deals with slick gear shifts on Vincents. So I studied the gearbox components for a long while and did not like the camplate sitting on the selector forks plus the pointed spring loaded pin that engages in the camplate vees. So then I bolted the camplate UP onto the alu block that is often found to be cracked. So no standard camplate pinion in my bikes. The detent pin was not my kind of design as it gets high side loads when shifting gear and does not want to move in its bore when it is a bit short and the bore not very deep, causes some friction from this. So that is why I wanted a lever for detent, like on other brands. The camplate is mostly standard, just I did some hard welding in a few places when I found there could be a bit more engagement of drive dogs. I don´t use jigs for checking gear positioning on all bikes as on most you can assemble all components in one side and see engagements for all gears to be acceptable, with a dentists mirror in doubt. So maybe this could be helpful for assembling gearboxes. And yes, I have only one ball bearing next to the clutch imperial standard, all other bearings are modern roller bearings with fits changed to metric o.d.s and inner races i.d. ground to go with imperial gearbox shafts. Roller bearings with rollers and cages in outer race plus plain inner races are very nice for assembling an engine. Vic [ATTACH type="full"]58923[/ATTACH] [ATTACH type="full"]58924[/ATTACH] [ATTACH type="full"]58925[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Five Speed Gearbox, Clutch Shaft and Carrier
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