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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Pre and post 1954 twin clutch
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<blockquote data-quote="timetraveller" data-source="post: 9136" data-attributes="member: 456"><p>Some of the confusion might arise from the pre and post series 'D' drawings in the official Vincent spares sheets. The gearbox mainshaft is drawn as the same item in the two copies which I have (other copies might differ) whereas in reality the two items are very different. On the later models the outer (clutch) end of the mainshaft is cylindrical without the splines going all the way to the end. You have to use the correct retaining nut with each type of shaft or it just will not fit.</p><p> </p><p>Regarding 'o' ring seals etc, I have mentioned in these pages earlier about putting an 'o' ring at the inner edge of the shoe carrier C3 after the inner edge of this has been chamfered or counter bored. It stops the oil getting into the shaft, rather than trying to stop it getting out and one just does not have to mess about with seals or jointing compound at the other end. If you have not done this yet you will be amazed at just how much better the whole system is. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="timetraveller, post: 9136, member: 456"] Some of the confusion might arise from the pre and post series 'D' drawings in the official Vincent spares sheets. The gearbox mainshaft is drawn as the same item in the two copies which I have (other copies might differ) whereas in reality the two items are very different. On the later models the outer (clutch) end of the mainshaft is cylindrical without the splines going all the way to the end. You have to use the correct retaining nut with each type of shaft or it just will not fit. Regarding 'o' ring seals etc, I have mentioned in these pages earlier about putting an 'o' ring at the inner edge of the shoe carrier C3 after the inner edge of this has been chamfered or counter bored. It stops the oil getting into the shaft, rather than trying to stop it getting out and one just does not have to mess about with seals or jointing compound at the other end. If you have not done this yet you will be amazed at just how much better the whole system is. :) [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Pre and post 1954 twin clutch
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