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Spark plug- what is the cause

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Old 08-30-2014, 05:27 PM
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Default Spark plug- what is the cause
Anyone know what causes this on a spark plug. It has 350 miles. It just does not look normal to me.
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Last edited by jstockert; 08-30-2014 at 05:39 PM.
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Old 08-30-2014, 05:33 PM
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Pictures?
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Old 08-30-2014, 05:40 PM
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ok. phone did not like my pic.
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Old 08-30-2014, 06:15 PM
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Looks like its been a little hot. What kind of plug is it? If its a NGK/Denso Iridium it looks about normal to me.
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Old 08-30-2014, 06:43 PM
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I don't see any issues.
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Old 08-30-2014, 06:45 PM
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Originally Posted by Carcrazygts2
Looks like its been a little hot. What kind of plug is it? If its a NGK/Denso Iridium it looks about normal to me.
Never run hot. New reman engine with 350 miles. It is a ngk tr55ix i believe is the part number. I did some research and looks like lead fouling. Caused by to much lead additive in gasoline. I have never seen lead fouling in a non carb. engine.
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Old 08-31-2014, 08:28 PM
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That gap looks awfully wide. I believe it should be .054" Have you checked it?
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Old 08-31-2014, 09:33 PM
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Yeah its .054. Jus the pic i guess makes it look wide.
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Old 09-01-2014, 12:22 AM
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Looks like a case of paranoia to me.
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Old 09-01-2014, 08:09 AM
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Originally Posted by Jbrew
Looks like a case of paranoia to me.
Maybe so. But I dont need any problems. It is the first time I have seen this on a plug.
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