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<blockquote data-quote="mast240" data-source="post: 7427012" data-attributes="member: 631695">1.) yes i know what i&#039;m talking about2.) i&#039;m not saying he is having deto in his engine, that any of his plugs are fouled, or that it even is a fuel problem... just that its a good place to start looking, if he is still having idle drop in a few days3.) i&#039;m giving hypotheticals here... you said lean conditions cant cause fouling... i rebutted... and you attack me, calling my knowledge into question... lets try your knowledge..alot of engines run in a mild state of deto... with no damage at all. it&#039;s not optimal, but does not garuntee any type of internal failure. a lower output engine ,lets say .5 hp/in3 or lower (majority of american made 6 &amp;amp; 8 cylinders), can sustain mild-moderate levels of deto, without sustaining any damage, while a higher output engine, 1.5 hp/in3 (majority of import 6 cylinders &amp;amp; 4 cylinders), will be more susceptible to damage if it sees deto at all..point being, with him driving a vic... his engine probably runs in a minor state of deto most of the time, due to a moderate level of spark advance, without any problem... now, if his A/F mixture goes a lil leaner, due to the reasons i listed in previous posts, it can cause the pressure spike from deto to rise substantially for a brief period of time, which in turn can foul a plug.your turn //content.invisioncic.com/y282845/emoticons/typing.gif.fd7c44a94b6ea7a328969e3ae0e010f7.gif</blockquote>

[QUOTE="mast240, post: 7427012, member: 631695"] 1.) yes i know what i'm talking about 2.) i'm not saying he is having deto in his engine, that any of his plugs are fouled, or that it even is a fuel problem... just that its a good place to start looking, if he is still having idle drop in a few days 3.) i'm giving hypotheticals here... you said lean conditions [B]cant[/B] cause fouling... i rebutted... and you attack me, calling my knowledge into question... lets try your knowledge.. alot of engines run in a mild state of deto... with no damage at all. it's not optimal, but does not garuntee any type of internal failure. a lower output engine ,lets say .5 hp/in3 or lower (majority of american made 6 & 8 cylinders), can sustain mild-moderate levels of deto, without sustaining any damage, while a higher output engine, 1.5 hp/in3 (majority of import 6 cylinders & 4 cylinders), will be more susceptible to damage if it sees deto at all.. point being, with him driving a vic... his engine probably runs in a minor state of deto most of the time, due to a moderate level of spark advance, without any problem... now, if his A/F mixture goes a lil leaner, due to the reasons i listed in previous posts, it can cause the pressure spike from deto to rise substantially for a brief period of time, which in turn can foul a plug. your turn [IMG]//content.invisioncic.com/y282845/emoticons/typing.gif.fd7c44a94b6ea7a328969e3ae0e010f7.gif[/IMG] [/QUOTE]

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