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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Magneto woes
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<blockquote data-quote="nkt267" data-source="post: 42750" data-attributes="member: 245"><p>Hmm.. This problem is a bit like ' chicken or egg first'. </p><p>I have been thinking about excess crankcase pressure causing oil to be pushed through the seal(this is also pointed out in a magneto service manual) I am experimenting with a crankcase breather at the moment, but I don't think I have made it big enough yet. Interestingly the breather on my 600cc 1932 Sunbeam only has a 1/4" breather and that seems ok.</p><p>Either way the fit of the bearing has to be addressed first.If I can find a decent body then I will go in that direction,though I have found someone selling a mag for a Comet so I may buy that anyway.</p><p>I will continue to repair the mag body as the knowledge I gain may help someone else in the future..John</p></blockquote><p></p>
[QUOTE="nkt267, post: 42750, member: 245"] Hmm.. This problem is a bit like ' chicken or egg first'. I have been thinking about excess crankcase pressure causing oil to be pushed through the seal(this is also pointed out in a magneto service manual) I am experimenting with a crankcase breather at the moment, but I don't think I have made it big enough yet. Interestingly the breather on my 600cc 1932 Sunbeam only has a 1/4" breather and that seems ok. Either way the fit of the bearing has to be addressed first.If I can find a decent body then I will go in that direction,though I have found someone selling a mag for a Comet so I may buy that anyway. I will continue to repair the mag body as the knowledge I gain may help someone else in the future..John [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Magneto woes
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