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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Gearbox
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<blockquote data-quote="chankly bore" data-source="post: 99184" data-attributes="member: 317"><p>The both gearbox shells MAY be correct. The prefix G97 is correct for the Meteor/Comet, assuming it hasn't been monkeyed with. I don't know what the G40 prefix was used on, but main things that seem to differ are mainshaft lengths, clutch centre bosses and, critically, the widths and locations of the top and bottom mounting lugs. To establish a datum, measure both of these from the face of the output bearing register on the G97 box and post them here. I'll confirm them with a known original if you like. A good chance that all the gears will be the same, but I have found a 34 tooth output gear in my travels! I believe "V.A.F." may have something to do with Vickers Aluminium Foundry, can anyone shed light? The best foundryman I ever met did his apprenticeship at Vickers Ruwolt here in Melbourne in the days when we actually made stuff in this country.</p></blockquote><p></p>
[QUOTE="chankly bore, post: 99184, member: 317"] The both gearbox shells MAY be correct. The prefix G97 is correct for the Meteor/Comet, assuming it hasn't been monkeyed with. I don't know what the G40 prefix was used on, but main things that seem to differ are mainshaft lengths, clutch centre bosses and, critically, the widths and locations of the top and bottom mounting lugs. To establish a datum, measure both of these from the face of the output bearing register on the G97 box and post them here. I'll confirm them with a known original if you like. A good chance that all the gears will be the same, but I have found a 34 tooth output gear in my travels! I believe "V.A.F." may have something to do with Vickers Aluminium Foundry, can anyone shed light? The best foundryman I ever met did his apprenticeship at Vickers Ruwolt here in Melbourne in the days when we actually made stuff in this country. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Gearbox
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