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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Burman Box Again
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<blockquote data-quote="Martyn Goodwin" data-source="post: 114481" data-attributes="member: 2433"><p>Could it be that the assembly relies on the nut bottoming on the thread? In all this gear box caper I am a very new boy and am struggling to understand the correct assy procedure. Now if we had access to the works drawings or works assembly instructions (Burman) only then could we be certain.</p><p></p><p>The attachment from 1941 in the second last parra of the item suggests that the nut (70X) must be done up tight. Take that in concert with Mr Bore's comments (above) and may be it is all resolved by having the nut bottom out on the thread - thus making the length of the PR50-39BA the critical dimension and one that 'may' be varied in order to achieve the claimed desired end float of ~0.010" on the main shaft.</p><p></p><p>I wonder if there are Burman documents in the hands of the Spares Co that may provide some clarity here?</p><p></p><p>I hate leaving mysteries like this unresolved. It may work - but why?</p><p></p><p>Martyn</p></blockquote><p></p>
[QUOTE="Martyn Goodwin, post: 114481, member: 2433"] Could it be that the assembly relies on the nut bottoming on the thread? In all this gear box caper I am a very new boy and am struggling to understand the correct assy procedure. Now if we had access to the works drawings or works assembly instructions (Burman) only then could we be certain. The attachment from 1941 in the second last parra of the item suggests that the nut (70X) must be done up tight. Take that in concert with Mr Bore's comments (above) and may be it is all resolved by having the nut bottom out on the thread - thus making the length of the PR50-39BA the critical dimension and one that 'may' be varied in order to achieve the claimed desired end float of ~0.010" on the main shaft. I wonder if there are Burman documents in the hands of the Spares Co that may provide some clarity here? I hate leaving mysteries like this unresolved. It may work - but why? Martyn [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Burman Box Again
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