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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet gearbox
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<blockquote data-quote="chankly bore" data-source="post: 20203" data-attributes="member: 317"><p>So,next thing to do is measure the mainshaft. Is it 287 mm.overall? Then measure the boss on which the clutch hub sits, with reference to the Comet gearbox article mentioned by Bill Thomas.I think he mentions a boss about 59/64" deep,and I think the splines go all the way through the abutting shoulder.Let us know what you find!Cheers, F5AB/2A/7945 Why exactly does the rod not fit? Too short?Too long?Wrong diameter hole or rod?Is the operating arm installed back to front?Is there a 1/4"ball or 1/4"x1/4"roller between the thrust fork and the pushrod?So many chances after 60 years of unidentified frogs and idiots leaving you with monumental dramas.</p></blockquote><p></p>
[QUOTE="chankly bore, post: 20203, member: 317"] So,next thing to do is measure the mainshaft. Is it 287 mm.overall? Then measure the boss on which the clutch hub sits, with reference to the Comet gearbox article mentioned by Bill Thomas.I think he mentions a boss about 59/64" deep,and I think the splines go all the way through the abutting shoulder.Let us know what you find!Cheers, F5AB/2A/7945 Why exactly does the rod not fit? Too short?Too long?Wrong diameter hole or rod?Is the operating arm installed back to front?Is there a 1/4"ball or 1/4"x1/4"roller between the thrust fork and the pushrod?So many chances after 60 years of unidentified frogs and idiots leaving you with monumental dramas. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet gearbox
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