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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Push rod tubes
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<blockquote data-quote="vibrac" data-source="post: 130533" data-attributes="member: 60"><p>I have a set of TT push-rod tubes but I found that the angle is more fixed than the standard tubes I found that with one of the last engines I built I could not screw into the head inserts without changing the compression ratio (cylinder height) I wanted.</p><p> I think the comment about producing your own tubes with thicker walls flanges (and perhaps a more pronounced lead in to the seal to help insertion?) is the best solution Its an easy lathe job as I believe the supposedly leaky series D tubes were not due to them being made of aluminum but more to do with the holes in the crankcase being wrong. Anyway if this new tube,new seals, no glue method fails thats what I shall try next.</p><p>You have to admit this is all fun the owner of a 2020 motorcycle will never enjoy......</p></blockquote><p></p>
[QUOTE="vibrac, post: 130533, member: 60"] I have a set of TT push-rod tubes but I found that the angle is more fixed than the standard tubes I found that with one of the last engines I built I could not screw into the head inserts without changing the compression ratio (cylinder height) I wanted. I think the comment about producing your own tubes with thicker walls flanges (and perhaps a more pronounced lead in to the seal to help insertion?) is the best solution Its an easy lathe job as I believe the supposedly leaky series D tubes were not due to them being made of aluminum but more to do with the holes in the crankcase being wrong. Anyway if this new tube,new seals, no glue method fails thats what I shall try next. You have to admit this is all fun the owner of a 2020 motorcycle will never enjoy...... [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Push rod tubes
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