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General Chat (Vincent Related)
Valve Spring Reference
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<blockquote data-quote="Phil Davies" data-source="post: 92285" data-attributes="member: 2541"><p>Unfortunately the info was supplied to me on a 'no tell basis' as the man concerned makes his living by engine prep (not vin's - which is why he told me (and I was spending money there at the time!)) and its something that 'paying customers' get. The man's stellar reputation in engine prep is well known.</p><p>What I can say is that the engine concerned was a 500cc OHV single derived from the late 1950s/early 60s period of manufacture. The springs are not originally from a motorcycle engine, but their data was derived as a direct consequence of a large european R&D budget for endurance racing!</p><p>That probably doesn't help, but is all I can tell without breaking my word.</p></blockquote><p></p>
[QUOTE="Phil Davies, post: 92285, member: 2541"] Unfortunately the info was supplied to me on a 'no tell basis' as the man concerned makes his living by engine prep (not vin's - which is why he told me (and I was spending money there at the time!)) and its something that 'paying customers' get. The man's stellar reputation in engine prep is well known. What I can say is that the engine concerned was a 500cc OHV single derived from the late 1950s/early 60s period of manufacture. The springs are not originally from a motorcycle engine, but their data was derived as a direct consequence of a large european R&D budget for endurance racing! That probably doesn't help, but is all I can tell without breaking my word. [/QUOTE]
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