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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Is it the valve guides, the cylinder sleeve or the piston?
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<blockquote data-quote="timetraveller" data-source="post: 51262" data-attributes="member: 456"><p>A very good welder could repair the break through and then there was a picture a few days ago of what can be done to a rocker bush to make it fit around a weld. Alternatively, and if you have access to a good machinist, think about boring out the inlet tract and then fitting a piece of ali tube to be a good interference fit in the inlet tract. It will depend upon just where the break through is as to what you can get away with. If all else fails then there are new heads available and someone who has fitted a Terry Prince top end might well be happy to recover some of the cost be selling their old head. Good luck.</p></blockquote><p></p>
[QUOTE="timetraveller, post: 51262, member: 456"] A very good welder could repair the break through and then there was a picture a few days ago of what can be done to a rocker bush to make it fit around a weld. Alternatively, and if you have access to a good machinist, think about boring out the inlet tract and then fitting a piece of ali tube to be a good interference fit in the inlet tract. It will depend upon just where the break through is as to what you can get away with. If all else fails then there are new heads available and someone who has fitted a Terry Prince top end might well be happy to recover some of the cost be selling their old head. Good luck. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Is it the valve guides, the cylinder sleeve or the piston?
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