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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet drive side crankcase
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<blockquote data-quote="biggles" data-source="post: 25330" data-attributes="member: 140"><p><strong>Comet drive side cases</strong></p><p></p><p></p><p> </p><p>Hi Chankly.</p><p> Not quite certain what you mean by "bearing registers" as the bearings register against the circlip.</p><p> But if you want to check the concentricity and alignment of the bearing housing.Firstly ensure that the</p><p> timing cover face is flat by removing the dowels and checking on a surface plate or piece of plate glass.</p><p>Then mount and clamp the r/h case on a vertical milling machine and clock the bearing houses true with a dial gauge.</p><p>You can then lower the machine table place the d/s case on its locating dowels and clock the housing in that case.</p><p> You will have to of course ensure that the mating faces are clean and un damaged it is also advisable to lightly clamp the cases together.</p><p> If you don't have access to a mill you may have to chat up a local small engineering shop.</p><p></p><p>P.S. I have two pieces of 1Ft square 1/2" plate glass if anyone wishes to pay the postage they are welcome to them.</p><p>Cheers.</p><p>Biggles<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /></p></blockquote><p></p>
[QUOTE="biggles, post: 25330, member: 140"] [b]Comet drive side cases[/b] Hi Chankly. Not quite certain what you mean by "bearing registers" as the bearings register against the circlip. But if you want to check the concentricity and alignment of the bearing housing.Firstly ensure that the timing cover face is flat by removing the dowels and checking on a surface plate or piece of plate glass. Then mount and clamp the r/h case on a vertical milling machine and clock the bearing houses true with a dial gauge. You can then lower the machine table place the d/s case on its locating dowels and clock the housing in that case. You will have to of course ensure that the mating faces are clean and un damaged it is also advisable to lightly clamp the cases together. If you don't have access to a mill you may have to chat up a local small engineering shop. P.S. I have two pieces of 1Ft square 1/2" plate glass if anyone wishes to pay the postage they are welcome to them. Cheers. Biggles:cool: [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet drive side crankcase
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