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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Main Bearing
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<blockquote data-quote="Hugo Myatt" data-source="post: 106933" data-attributes="member: 99"><p>Peter Appleton is absolutely right. The so-called seal will work as a very efficient flap valve. For the whole saga see 'Another Ten Years' but briefly with this sort of sealed bearing installed on my Rapide I managed to make the primary case completely oil tight including the dynamo drive. The result was the primary case pressurised with a ratcheting effect so much so that it drove all the oil out of the chaincase and into the gearbox leaving the primary case dry, raising the level in the gearbox and pressurising the gearbox. Be very cautious. Hugo</p></blockquote><p></p>
[QUOTE="Hugo Myatt, post: 106933, member: 99"] Peter Appleton is absolutely right. The so-called seal will work as a very efficient flap valve. For the whole saga see 'Another Ten Years' but briefly with this sort of sealed bearing installed on my Rapide I managed to make the primary case completely oil tight including the dynamo drive. The result was the primary case pressurised with a ratcheting effect so much so that it drove all the oil out of the chaincase and into the gearbox leaving the primary case dry, raising the level in the gearbox and pressurising the gearbox. Be very cautious. Hugo [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Main Bearing
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