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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Clutch Centre damaged splines
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<blockquote data-quote="donrapide" data-source="post: 11016" data-attributes="member: 120"><p>Like so many I have had problems with the Comet clutch, onetime packing the splines with slivers of cat food tins, to cut down on backlash.-fit them on the over run position.</p><p> </p><p>On my current bike I have fitted a thick, stainless, washer, which is dished, like a Bellville washer. This is fitted concave side to the clutch centre.</p><p> </p><p>To lock the nut I made a special tab, this has a vernier effect. One side gives 5 different positions, turn it over and you have another, different,5 positions. Fit a small spring over the tab to hold it in position.</p><p> </p><p>A problem with any tab washer fitted under the nut is that I found that the washer spread out over time and allowed the nut to loose its grip. With such a short length of thread there is very little extension of the thread under the nut. Compare this with a cylinder head nut where you have a long length of stud to spring and a little loosening of the nut still gives you plenty of grip.</p><p> </p><p>The plate you can see in the photo is to give support to the first plain plate and is fitted from the back of the centre. This works very well.</p></blockquote><p></p>
[QUOTE="donrapide, post: 11016, member: 120"] Like so many I have had problems with the Comet clutch, onetime packing the splines with slivers of cat food tins, to cut down on backlash.-fit them on the over run position. On my current bike I have fitted a thick, stainless, washer, which is dished, like a Bellville washer. This is fitted concave side to the clutch centre. To lock the nut I made a special tab, this has a vernier effect. One side gives 5 different positions, turn it over and you have another, different,5 positions. Fit a small spring over the tab to hold it in position. A problem with any tab washer fitted under the nut is that I found that the washer spread out over time and allowed the nut to loose its grip. With such a short length of thread there is very little extension of the thread under the nut. Compare this with a cylinder head nut where you have a long length of stud to spring and a little loosening of the nut still gives you plenty of grip. The plate you can see in the photo is to give support to the first plain plate and is fitted from the back of the centre. This works very well. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Clutch Centre damaged splines
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