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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Stripped oil pump
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<blockquote data-quote="Howard" data-source="post: 13639" data-attributes="member: 271"><p>John</p><p> </p><p>I see your reasoning on this, apart from one thing I can't get clear in my mind.</p><p> </p><p>Assuming parts wear evenly (and that itself may be wrong) surely the pitch of the old worm and the new plunger will be the same, it's just that the old teeth will be thinner causing more backlash.</p><p> </p><p>ok, two things, why doesn't the wear stop when the new plunger teeth are as thick (thin) as the old plunger teeth?</p><p> </p><p>H <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused :confused:" loading="lazy" data-shortname=":confused:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused :confused:" loading="lazy" data-shortname=":confused:" /></p><p> </p><p>Later thought - is it anything to do with the plunger moving axially - I keep forgetting this isn't a straightforward worm and wheel.</p><p> </p><p>H</p></blockquote><p></p>
[QUOTE="Howard, post: 13639, member: 271"] John I see your reasoning on this, apart from one thing I can't get clear in my mind. Assuming parts wear evenly (and that itself may be wrong) surely the pitch of the old worm and the new plunger will be the same, it's just that the old teeth will be thinner causing more backlash. ok, two things, why doesn't the wear stop when the new plunger teeth are as thick (thin) as the old plunger teeth? H :confused::confused: Later thought - is it anything to do with the plunger moving axially - I keep forgetting this isn't a straightforward worm and wheel. H [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Stripped oil pump
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