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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cam Wear
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<blockquote data-quote="Simon Dinsdale" data-source="post: 92805" data-attributes="member: 58"><p>A lot of Vincent's have done a very high mileage as touring machines over the years. In the 1950's Tony Rose did 100,000 mile test on a Vincent without any major work been done so even though the oiling system of the engine is fairly basic, it does its required job on a standard machine. So to me it looks like you have a specific problem with the assembly of your engine and parts clearance Nigel rather that looking at the general lubrication system as the std holes in the rocker feeds have not been a problem on most bikes.</p><p>I've never believed that oil coming down the pushrod tubes contributes much to cam lubrication as everything is thrashing around at several thousand RPM and a drop of oil is going to get swiped out of the way before it can get to a cam surface. The fact that oil in general is been thrashed about by everything moving in the timing side will be the main lubrication source along with the oil supply through the timing cover to cam spindles which should work to the cam surface through the small holes in the cams which are sometimes missing. Just try running your engine without the mag atd cover for a minute, oil will go everywhere.</p><p></p><p>Just a thought, putting my engineers head on.</p><p>Simon</p></blockquote><p></p>
[QUOTE="Simon Dinsdale, post: 92805, member: 58"] A lot of Vincent's have done a very high mileage as touring machines over the years. In the 1950's Tony Rose did 100,000 mile test on a Vincent without any major work been done so even though the oiling system of the engine is fairly basic, it does its required job on a standard machine. So to me it looks like you have a specific problem with the assembly of your engine and parts clearance Nigel rather that looking at the general lubrication system as the std holes in the rocker feeds have not been a problem on most bikes. I've never believed that oil coming down the pushrod tubes contributes much to cam lubrication as everything is thrashing around at several thousand RPM and a drop of oil is going to get swiped out of the way before it can get to a cam surface. The fact that oil in general is been thrashed about by everything moving in the timing side will be the main lubrication source along with the oil supply through the timing cover to cam spindles which should work to the cam surface through the small holes in the cams which are sometimes missing. Just try running your engine without the mag atd cover for a minute, oil will go everywhere. Just a thought, putting my engineers head on. Simon [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cam Wear
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