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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Alton generator
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<blockquote data-quote="Monkeypants" data-source="post: 108475" data-attributes="member: 2708"><p>Just to be clear, this is on an eccentric created by the mount position and hub position offset in the generator body. It is possible to install the bottom bracket backwards, that could mess up the arrangement.</p><p>The hole through the primary case is oversized to allow for the adjustment and movement of the Miller/Lucas or in this case, Alton.</p><p>The amount of available movement is great- enough to lift the sprocket tooth nearly out of the chain or drop it too low so that the sprockets gullets are resting on the rollers.</p><p>Just rotate the charging unit around until the sprocket has a tiny bit of Freeplay back and forth.</p><p>Rotate the chain wheel and check that there is freeplay at even the tightest spot.</p><p>This should be easy to do without the need for shimming as there is so much adjustment there.</p><p>-Re the noise level.</p><p>I tried running a black Delrin sprocket. I can't remember who supplied or suggested this.</p><p>The bike sounded like it had a Police siren fitted.</p><p>The white plastic ones run quiet, but I've gone back to the steel. If it's making a noise, I can't hear it !</p><p></p><p>On edit, Brian's bike has the Newby belt drive so the Alton will be fitted with an al. Newby toothed wheel. I'm not sure why that would be noisy, it's aluminium running on a rubber belt with a nice wide contact area.</p><p></p><p>Glen</p></blockquote><p></p>
[QUOTE="Monkeypants, post: 108475, member: 2708"] Just to be clear, this is on an eccentric created by the mount position and hub position offset in the generator body. It is possible to install the bottom bracket backwards, that could mess up the arrangement. The hole through the primary case is oversized to allow for the adjustment and movement of the Miller/Lucas or in this case, Alton. The amount of available movement is great- enough to lift the sprocket tooth nearly out of the chain or drop it too low so that the sprockets gullets are resting on the rollers. Just rotate the charging unit around until the sprocket has a tiny bit of Freeplay back and forth. Rotate the chain wheel and check that there is freeplay at even the tightest spot. This should be easy to do without the need for shimming as there is so much adjustment there. -Re the noise level. I tried running a black Delrin sprocket. I can't remember who supplied or suggested this. The bike sounded like it had a Police siren fitted. The white plastic ones run quiet, but I've gone back to the steel. If it's making a noise, I can't hear it ! On edit, Brian's bike has the Newby belt drive so the Alton will be fitted with an al. Newby toothed wheel. I'm not sure why that would be noisy, it's aluminium running on a rubber belt with a nice wide contact area. Glen [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Alton generator
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