06-07-2010, 02:30 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
Quote:
Originally Posted by elmariachi
Just to be sure, I tore this 3255-1 LeMans that I have been struggling with apart yesterday and checked every single orifice: Nothing extraordinary. However, I have noticed something peculiar though from running this carb.....several of my spark plugs are showing a single, focused dark spot about the size of a pencil eraser on the side of the insulator near the tip. Imagine spotting it with a Sharpie right below where the isolator touches the electrode tip. All the plug reading charts I can find call this "splash deposits" related to a gunked up carb or fuel additives. I am running Redline lead substitute but haven't seen this in 3500 miles with the Mighty Demon. Anyone seen something like this?
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Why are you running lead substitute? Don't you have hardened valve seats?
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