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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Chopped Cases
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<blockquote data-quote="davidd" data-source="post: 165749" data-attributes="member: 1177"><p>That does not look good to me. The weak part on the stock drive side case is the outside drive bearing and it has been made substantially worse by removing so much of the journal and the retaining clip. Normally, the crank is centered by tightening the nut on the drive side and pulling the crank toward the ESA. The outside circlip has been removed, so there is only the inner circlip to pul up against. </p><p></p><p>Also, it looks like they were planning on running a shortened main shaft by removing the journal and webbing. This is possible with the transmission removed, but it is difficult to tell how well the drive-side bearing will be supported because it takes a beating. I don't think I would expect this mod to stand up to Lightning power for very long.</p><p></p><p>I think there are some ways to repair the journal, but the work will have to be good and that usually means expensive. You will have to design a new drive side first and there are not many primary drives that will survive Lightning power that are not expensive.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 165749, member: 1177"] That does not look good to me. The weak part on the stock drive side case is the outside drive bearing and it has been made substantially worse by removing so much of the journal and the retaining clip. Normally, the crank is centered by tightening the nut on the drive side and pulling the crank toward the ESA. The outside circlip has been removed, so there is only the inner circlip to pul up against. Also, it looks like they were planning on running a shortened main shaft by removing the journal and webbing. This is possible with the transmission removed, but it is difficult to tell how well the drive-side bearing will be supported because it takes a beating. I don't think I would expect this mod to stand up to Lightning power for very long. I think there are some ways to repair the journal, but the work will have to be good and that usually means expensive. You will have to design a new drive side first and there are not many primary drives that will survive Lightning power that are not expensive. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Chopped Cases
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