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Broken 7CP Burman Gearbox shell!
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<blockquote data-quote="radders" data-source="post: 22844" data-attributes="member: 2440"><p>Hi all,</p><p> </p><p>We have managed to break a part of the casting that holds the clutch lever on an early CP gearbox. It is a loop that's part of the case, holding the external lever, which operates the rod that passes through the box to the clutch - It acts as the hinge for the clutch lever (I can e-mail photos, not a very good description!).</p><p> </p><p>The box is fitted to my grandfathers 1927 HRD 90 in place of the top hung original. It is a 4 speed foot change unit that has been on the bike since at least 1946. I have tried every dealer etc. that I can think of (Draganfly, Ron Farthing, ACM etc) for a replacement. </p><p> </p><p>Can anybody help? It is model/number <strong>7 CPBX 19584, </strong>a couple of people have suggested that it is an early Ariel box. </p><p> </p><p>Does anybody know what the numbers stand for/what age the box is/ what it's originally from please - this would really help my search! The ally is poor quality and the broken pieces are very small. I don't think it will weld, vacuum soldering has been suggested, has anybody tried this on these old cast ally parts?</p><p> </p><p>Would really appreciate any advice!</p><p> </p><p>Many thanks, Matt</p></blockquote><p></p>
[QUOTE="radders, post: 22844, member: 2440"] Hi all, We have managed to break a part of the casting that holds the clutch lever on an early CP gearbox. It is a loop that's part of the case, holding the external lever, which operates the rod that passes through the box to the clutch - It acts as the hinge for the clutch lever (I can e-mail photos, not a very good description!). The box is fitted to my grandfathers 1927 HRD 90 in place of the top hung original. It is a 4 speed foot change unit that has been on the bike since at least 1946. I have tried every dealer etc. that I can think of (Draganfly, Ron Farthing, ACM etc) for a replacement. Can anybody help? It is model/number [B]7 CPBX 19584, [/B]a couple of people have suggested that it is an early Ariel box. Does anybody know what the numbers stand for/what age the box is/ what it's originally from please - this would really help my search! The ally is poor quality and the broken pieces are very small. I don't think it will weld, vacuum soldering has been suggested, has anybody tried this on these old cast ally parts? Would really appreciate any advice! Many thanks, Matt [/QUOTE]
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Broken 7CP Burman Gearbox shell!
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