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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Engine Shock Absorber
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<blockquote data-quote="Pushrod Twin" data-source="post: 116916" data-attributes="member: 340"><p>And just for comparison, here is a dirty old Moto Guzzi one. Remarkably similar in ramp shape, I think, to a Vincent one. Been used by MG from the first 750cc Sport 5 speeds in 1972 until the demise of the 5 speeds in 1100 cc California models recently. The only change I am aware of came with the 1000cc Lemans when the coil spring was replaced with Belville washers.</p><p></p><p>What does make a noticeable difference in driveline shocks is a rubber cush in the rear wheel. It is easy to get a direct comparison with an old Guzzi. My Sport started out life with the solid, fixed spline, rear wheel. I fitted an 850T wheel with the rubber cush. Noticeable difference in gear changes, smoother & quieter. One would expect a bit more life out of universal joints too, but I havent been in for a look yet. </p><p></p><p>I would be reluctant to remove the D style ESA off my Vin if I fitted an electric starter. I feel it should take some of the shock out of the starter system. Electric motors, with no VSD or soft start, go from zero to full torque instantly, if that doesnt create a shock on the mains bearings I would be surprised.</p></blockquote><p></p>
[QUOTE="Pushrod Twin, post: 116916, member: 340"] And just for comparison, here is a dirty old Moto Guzzi one. Remarkably similar in ramp shape, I think, to a Vincent one. Been used by MG from the first 750cc Sport 5 speeds in 1972 until the demise of the 5 speeds in 1100 cc California models recently. The only change I am aware of came with the 1000cc Lemans when the coil spring was replaced with Belville washers. What does make a noticeable difference in driveline shocks is a rubber cush in the rear wheel. It is easy to get a direct comparison with an old Guzzi. My Sport started out life with the solid, fixed spline, rear wheel. I fitted an 850T wheel with the rubber cush. Noticeable difference in gear changes, smoother & quieter. One would expect a bit more life out of universal joints too, but I havent been in for a look yet. I would be reluctant to remove the D style ESA off my Vin if I fitted an electric starter. I feel it should take some of the shock out of the starter system. Electric motors, with no VSD or soft start, go from zero to full torque instantly, if that doesnt create a shock on the mains bearings I would be surprised. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Engine Shock Absorber
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