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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Valve piston clash
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<blockquote data-quote="b'knighted" data-source="post: 52734" data-attributes="member: 59"><p>My standard MO 17 shows the standard set up for rocker bushes ET26/1 held down by the rocker feed bolts ET100. One of the first things I learned when building my twin was that if the tunnels were worn longer ET26s could be fitted. If the tunnels were not worn, the best way to preserve them was to fit locking rocker feed bolts ET100/1? which held the ET26s up against the roof of the tunnel by screwing into a “top hat” nut inside the bush. Could loose tappets without locking feed bolts allow the bushes to rattle up and down causing the pinion ET28 to wear on the bushes?</p></blockquote><p></p>
[QUOTE="b'knighted, post: 52734, member: 59"] My standard MO 17 shows the standard set up for rocker bushes ET26/1 held down by the rocker feed bolts ET100. One of the first things I learned when building my twin was that if the tunnels were worn longer ET26s could be fitted. If the tunnels were not worn, the best way to preserve them was to fit locking rocker feed bolts ET100/1? which held the ET26s up against the roof of the tunnel by screwing into a “top hat” nut inside the bush. Could loose tappets without locking feed bolts allow the bushes to rattle up and down causing the pinion ET28 to wear on the bushes? [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Valve piston clash
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