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Technical
1776 - No1 cylinder, plug carbon fouling
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<blockquote data-quote="Zcat7" data-source="post: 473934" data-attributes="member: 14023"><p>Bluesnailman - fuel was put in just before the 30 mile run and the tank was showing pretty much empty. I filled it with BP regular unleaded. </p><p></p><p>Jonboylaw - good advice on the timing., will recheck and be diligent about WOT and overrun. Yes 1&2 do share the same venturi, solex 40s are twin single chokes. I still have the 009 with Pertronix that I could fit so might try that again.</p><p></p><p>What do you think about plug temps? I was wondering if the engine is running too cool due to current weather. I don't have the thermostat and flaps fitted at the mo but have sourced a set and plan to install them once the monsoon season subsides. </p><p></p><p>The only thing I can think is that as #1 and #3 naturally fire poorly on idle this gives a tendency for the plugs to start fouling. But then, as piston #3 is known to run hottest out of the 4, maybe it runs just hot enough to self clean the plug and #1 doesn't quite make the cut (if you'll pardon the pun!) and the fouling increases. What do you think?</p><p></p><p>Thanks for the replies, I have a couple of things to try now.</p></blockquote><p></p>
[QUOTE="Zcat7, post: 473934, member: 14023"] Bluesnailman - fuel was put in just before the 30 mile run and the tank was showing pretty much empty. I filled it with BP regular unleaded. Jonboylaw - good advice on the timing., will recheck and be diligent about WOT and overrun. Yes 1&2 do share the same venturi, solex 40s are twin single chokes. I still have the 009 with Pertronix that I could fit so might try that again. What do you think about plug temps? I was wondering if the engine is running too cool due to current weather. I don't have the thermostat and flaps fitted at the mo but have sourced a set and plan to install them once the monsoon season subsides. The only thing I can think is that as #1 and #3 naturally fire poorly on idle this gives a tendency for the plugs to start fouling. But then, as piston #3 is known to run hottest out of the 4, maybe it runs just hot enough to self clean the plug and #1 doesn't quite make the cut (if you'll pardon the pun!) and the fouling increases. What do you think? Thanks for the replies, I have a couple of things to try now. [/QUOTE]
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1776 - No1 cylinder, plug carbon fouling
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