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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="andrew peters" data-source="post: 170916" data-attributes="member: 3776"><p>I have been putting a 5 speed gearbox in my Series C Rapide and I am keeping the stock clutch, I like it, it seems to work fine for me and in the past I've just assembled it without a lot of the the accuracy and detailed 'precise care' that probably should be achieved... I have made real and successful attempts to keep oil out though so I'm happy there... I will this time make more effort to set up my clutch better.. I've studied and thought extensively and I think I can achieve the perfect clutch that PCV intended! (my recent study guide is Les Goode, "clutch thy beast")</p><p>Anyway, my question to you experts out there... </p><p>The Surtees 5 speed appears to have the Series D clutch shaft, G3/1 with a shoulder (approx 5/16) between the spline and the clutch nuts fine thread, looks like a Series D style shaft to me (from looking at pictures) and my old G3 is different... Am I correct in thinking I should use the clutch shoe carrier C3/2, seal C18/2 and nut C20/1</p><p>I have ordered these parts just in case and I'm fairly sure I know the answer but I really would like some confirmation from someone who knows what they are talking about and I'm just 'guessing'</p><p>I'm sure the Series D method of sealing the oil out of the clutch is better than the Dowty seal but I will still machine a recess on the C3/2 for an O ring at the gearbox end, 'belt and braces'</p><p>On the subject of C3.. I put new seal PD24 and new bushes PD21 and PD25... the C3 seems a little tight with new seal, it's not the bushes... I hope that will ease up with use, I don't want a dragging clutch...the old worn parts sometime give a good service.</p><p>Another thing I thought I should replace, my kickstart shaft G83 was slightly bent and the spline slightly twisted, I put a new one in, as well as gearshift shaft G117 and G66/2AS... now my kickstart cover G1 is tight (misaligned?) and the shift lever doesn't return properly, like the shaft is binding a little... I guess all the worn out, tired and bent parts had learnt to live together in blissful harmony... Grrr! the fun of old bikes.</p><p>Once I get this all back together and working as it should, I may write a little 'blog' with some photos of my 'adventure', hopeful my anguished experience can be of use to others. My story will probably read as a collection of the knowledge of others before me but perhaps I can put it all in one place.</p><p>Thank you for the knowledge of those before us all!</p></blockquote><p></p>
[QUOTE="andrew peters, post: 170916, member: 3776"] I have been putting a 5 speed gearbox in my Series C Rapide and I am keeping the stock clutch, I like it, it seems to work fine for me and in the past I've just assembled it without a lot of the the accuracy and detailed 'precise care' that probably should be achieved... I have made real and successful attempts to keep oil out though so I'm happy there... I will this time make more effort to set up my clutch better.. I've studied and thought extensively and I think I can achieve the perfect clutch that PCV intended! (my recent study guide is Les Goode, "clutch thy beast") Anyway, my question to you experts out there... The Surtees 5 speed appears to have the Series D clutch shaft, G3/1 with a shoulder (approx 5/16) between the spline and the clutch nuts fine thread, looks like a Series D style shaft to me (from looking at pictures) and my old G3 is different... Am I correct in thinking I should use the clutch shoe carrier C3/2, seal C18/2 and nut C20/1 I have ordered these parts just in case and I'm fairly sure I know the answer but I really would like some confirmation from someone who knows what they are talking about and I'm just 'guessing' I'm sure the Series D method of sealing the oil out of the clutch is better than the Dowty seal but I will still machine a recess on the C3/2 for an O ring at the gearbox end, 'belt and braces' On the subject of C3.. I put new seal PD24 and new bushes PD21 and PD25... the C3 seems a little tight with new seal, it's not the bushes... I hope that will ease up with use, I don't want a dragging clutch...the old worn parts sometime give a good service. Another thing I thought I should replace, my kickstart shaft G83 was slightly bent and the spline slightly twisted, I put a new one in, as well as gearshift shaft G117 and G66/2AS... now my kickstart cover G1 is tight (misaligned?) and the shift lever doesn't return properly, like the shaft is binding a little... I guess all the worn out, tired and bent parts had learnt to live together in blissful harmony... Grrr! the fun of old bikes. Once I get this all back together and working as it should, I may write a little 'blog' with some photos of my 'adventure', hopeful my anguished experience can be of use to others. My story will probably read as a collection of the knowledge of others before me but perhaps I can put it all in one place. Thank you for the knowledge of those before us all! [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Five Speed Gearbox, Clutch Shaft and Carrier
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