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Technical
1776 - No1 cylinder, plug carbon fouling
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<blockquote data-quote="Zcat7" data-source="post: 500699" data-attributes="member: 14023"><p>Well its only taken me since the end of January to get around to pulling the engine but I have now looked at this problem and reinstated the thermostat flaps! As Trikky suspected there was an oil control ring problem. I found a large glug of oil in number 1 piston when I pulled the head off. Stripping the piston showed that the wavy oil scraper spacer had indeed overlapped when I reinstalled it (****...). </p><p></p><p>So, I popped it all back together again and she fired up within a couple of turns. The idle is altogether different, smooth and even again. I think I need to set the carbs up properly/again though as things don't seem quite right but I'm in that hyper-critical phase at the moment where I'm listening to every noise and tick and maybe scrutinising the performance too much. I still fancy that there is a touch of hesitation on acceleration but I'm pretty certain that all the vibration has now gone at around 1600 rpm. There is some popping and farting on hard throttle when cold but this goes once she's warmed up.</p><p></p><p>So far as I can tell the flaps and stat are working OK too, which hopefully will contribute to a better all round setup!</p></blockquote><p></p>
[QUOTE="Zcat7, post: 500699, member: 14023"] Well its only taken me since the end of January to get around to pulling the engine but I have now looked at this problem and reinstated the thermostat flaps! As Trikky suspected there was an oil control ring problem. I found a large glug of oil in number 1 piston when I pulled the head off. Stripping the piston showed that the wavy oil scraper spacer had indeed overlapped when I reinstalled it (****...). So, I popped it all back together again and she fired up within a couple of turns. The idle is altogether different, smooth and even again. I think I need to set the carbs up properly/again though as things don't seem quite right but I'm in that hyper-critical phase at the moment where I'm listening to every noise and tick and maybe scrutinising the performance too much. I still fancy that there is a touch of hesitation on acceleration but I'm pretty certain that all the vibration has now gone at around 1600 rpm. There is some popping and farting on hard throttle when cold but this goes once she's warmed up. So far as I can tell the flaps and stat are working OK too, which hopefully will contribute to a better all round setup! [/QUOTE]
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Technical
1776 - No1 cylinder, plug carbon fouling
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