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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Bid End Rebuild
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<blockquote data-quote="oexing" data-source="post: 104480" data-attributes="member: 1493"><p>Litnman, why not try to revert to the old hole position in the flywheel ? Start with a dremel burr and drill at an angle into the present oil way in the flywheel. Finally plug the wrong exit with an alu plug. The side oiling design does not look to supply an even distribution for both conrods.</p><p> Press fit for pressed up cranks i do with 1/360 of in diameter as recommended by BMW on their classic post war twins, means 0,10 mm for a 36mm crank pin. But that is a very strong fit requiring an hydraulic press and on Vincents this was not the case so maybe only half of this percentage is standard. Very important to polish any radii on the pin so not to f*** up the flywheel bore. </p><p> Vic</p></blockquote><p></p>
[QUOTE="oexing, post: 104480, member: 1493"] Litnman, why not try to revert to the old hole position in the flywheel ? Start with a dremel burr and drill at an angle into the present oil way in the flywheel. Finally plug the wrong exit with an alu plug. The side oiling design does not look to supply an even distribution for both conrods. Press fit for pressed up cranks i do with 1/360 of in diameter as recommended by BMW on their classic post war twins, means 0,10 mm for a 36mm crank pin. But that is a very strong fit requiring an hydraulic press and on Vincents this was not the case so maybe only half of this percentage is standard. Very important to polish any radii on the pin so not to f*** up the flywheel bore. Vic [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Bid End Rebuild
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