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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Lower valve guide removal
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<blockquote data-quote="gwild" data-source="post: 8996" data-attributes="member: 242"><p>This is my first post so before we start I'd better get the hello everybody proceedings out of the way. Hello everybody. Now to business</p><p></p><p>I'm currently trying to rebuild a C Comet.</p><p>Over Christmas it was together enough to enable me to start the thing for the first time in my care (also my lifetime) which was a good feeling, but what was not was the lack of compression through my right foot. The valve guides were worn, so the valves weren't sealing against their seats.</p><p>I've taken it apart to put new lower valve guides in the heavily worn existing, but how do I get the old ones out?</p><p>This is the head:</p><p>[ATTACH]210[/ATTACH]</p><p>I made a crude fork with short fat tines to fit in the lockring, but after heating and twisting the head all I accomplished was shearing off the tines.</p><p>To my limited experience the lock rings don't look punchlocked in:</p><p>[ATTACH]211[/ATTACH]</p><p>The only mess around there is the working to relieve the oil flow to the rocker:</p><p>[ATTACH]212[/ATTACH]</p><p></p><p>Any help would be appreciated!</p><p>Many thanks, </p><p>gwild </p><p></p><p>Previous photos of the rebuild start <a href="http://www.vincentownersclub.co.uk/photos/showphoto.php/photo/3183/cat/all/ppuser/242" target="_blank">here</a></p></blockquote><p></p>
[QUOTE="gwild, post: 8996, member: 242"] This is my first post so before we start I'd better get the hello everybody proceedings out of the way. Hello everybody. Now to business I'm currently trying to rebuild a C Comet. Over Christmas it was together enough to enable me to start the thing for the first time in my care (also my lifetime) which was a good feeling, but what was not was the lack of compression through my right foot. The valve guides were worn, so the valves weren't sealing against their seats. I've taken it apart to put new lower valve guides in the heavily worn existing, but how do I get the old ones out? This is the head: [ATTACH]210.vB[/ATTACH] I made a crude fork with short fat tines to fit in the lockring, but after heating and twisting the head all I accomplished was shearing off the tines. To my limited experience the lock rings don't look punchlocked in: [ATTACH]211.vB[/ATTACH] The only mess around there is the working to relieve the oil flow to the rocker: [ATTACH]212.vB[/ATTACH] Any help would be appreciated! Many thanks, gwild Previous photos of the rebuild start [URL="http://www.vincentownersclub.co.uk/photos/showphoto.php/photo/3183/cat/all/ppuser/242"]here[/URL] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Lower valve guide removal
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