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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
John Emmanuel Fork Shock Absorber Length
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<blockquote data-quote="timetraveller" data-source="post: 113733" data-attributes="member: 456"><p><span style="color: rgb(184, 49, 47)">*</span>Timetraveller has noticed some errors in this post. He has corrected them in <a href="https://www.vincentownersclub.co.uk/threads/john-emmanuel-fork-shock-absorber-length.12248/#post-113754" target="_blank">post #13</a>. <em>Ed</em></p><p>You need to be aiming for a total travel of the damper of about 75 mm. This is the same on the spring boxes. The problem with the AVO dampers is that they have a bump stop inside and it is impossible to get the full travel by hand as the bump stop is so strong. I had to use a sash clamp to convince myself that the full 75 mm was possible. So starting with the lower link horizontal, or just a bit low on the front, no springs, wheels or anything else get the right combination of damper length and eyebolt length. That is the starting point for the 'at rest' position. From your picture it looks as though you have it about right. That is although the picture is taken from an angle the bottom link looks to be about the right angle.</p><p>Interesting modification to use needle rollers rather than the ball races. Are they going to run on the stainless steel concentrics or is there an inner bearing surface to go on the recesses machined into the concentrics?</p></blockquote><p></p>
[QUOTE="timetraveller, post: 113733, member: 456"] [COLOR=rgb(184, 49, 47)]*[/COLOR]Timetraveller has noticed some errors in this post. He has corrected them in [URL='https://www.vincentownersclub.co.uk/threads/john-emmanuel-fork-shock-absorber-length.12248/#post-113754']post #13[/URL]. [I]Ed[/I] You need to be aiming for a total travel of the damper of about 75 mm. This is the same on the spring boxes. The problem with the AVO dampers is that they have a bump stop inside and it is impossible to get the full travel by hand as the bump stop is so strong. I had to use a sash clamp to convince myself that the full 75 mm was possible. So starting with the lower link horizontal, or just a bit low on the front, no springs, wheels or anything else get the right combination of damper length and eyebolt length. That is the starting point for the 'at rest' position. From your picture it looks as though you have it about right. That is although the picture is taken from an angle the bottom link looks to be about the right angle. Interesting modification to use needle rollers rather than the ball races. Are they going to run on the stainless steel concentrics or is there an inner bearing surface to go on the recesses machined into the concentrics? [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
John Emmanuel Fork Shock Absorber Length
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