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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cams
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<blockquote data-quote="john998" data-source="post: 27734" data-attributes="member: 289"><p>Hello,</p><p>Having made a simple rig to measure the lift on my spare cams, I have found that all 3 sets show a large difference in lift between the long and the short cam.</p><p>The Mk3 short gives 115 thou lift at 40 degrees, the long gives 82 thou at 40 degrees, this is turning both cams clockwise.</p><p>Am I missing the obvious? is it because the cam followers are laid out at different angles.</p><p>Also is there an easy way to identify an unmarked cam, to determine if it is Mk1 or M3 </p><p>Now awaiting the brickbats.</p><p> Regards John.</p></blockquote><p></p>
[QUOTE="john998, post: 27734, member: 289"] Hello, Having made a simple rig to measure the lift on my spare cams, I have found that all 3 sets show a large difference in lift between the long and the short cam. The Mk3 short gives 115 thou lift at 40 degrees, the long gives 82 thou at 40 degrees, this is turning both cams clockwise. Am I missing the obvious? is it because the cam followers are laid out at different angles. Also is there an easy way to identify an unmarked cam, to determine if it is Mk1 or M3 Now awaiting the brickbats. Regards John. [/QUOTE]
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