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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cam Suppliers
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<blockquote data-quote="oexing" data-source="post: 110183" data-attributes="member: 1493"><p>Still thinking positive about positive lubrication into the cam spindles - am I too naive ?? But then I would not expect to have cams and followers surviving for substantional times, the bushes my least concern. Maybe the fits were too tight for decent oil film buildup? I´d want one thou play in the bushes at this kind of size, so half a thou oil film.</p><p> The needle bearing mod has no races or cages, real crowded rollers design with 1.5mm needles. So the cam spindles, factory new sets from Andrews, just required minimal lapping for a fraction below 16 mm i.d. and the case hardened shafts are 13 mm , so not too bad - plus you have a steady plate outside for support. All fits have to be correct for sure. I had the engine case with shafts on the mill for getting all dimensions so the steady plates were bored with all correct sizes after measuring the shafts etc. .</p><p></p><p> Vic</p></blockquote><p></p>
[QUOTE="oexing, post: 110183, member: 1493"] Still thinking positive about positive lubrication into the cam spindles - am I too naive ?? But then I would not expect to have cams and followers surviving for substantional times, the bushes my least concern. Maybe the fits were too tight for decent oil film buildup? I´d want one thou play in the bushes at this kind of size, so half a thou oil film. The needle bearing mod has no races or cages, real crowded rollers design with 1.5mm needles. So the cam spindles, factory new sets from Andrews, just required minimal lapping for a fraction below 16 mm i.d. and the case hardened shafts are 13 mm , so not too bad - plus you have a steady plate outside for support. All fits have to be correct for sure. I had the engine case with shafts on the mill for getting all dimensions so the steady plates were bored with all correct sizes after measuring the shafts etc. . Vic [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cam Suppliers
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