Black Powdery Substance in Spark Plug Cylinder

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#21

12-06-2010, 11:18 PM

bbarcher

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Location: San Antonio, TX

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Read this page, about "corona discharge"
http://www.ngkspark.com.au/sparkplug_tech.php#

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#22

04-03-2011, 04:53 AM

trentaiken

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Note: the material the cover is made of is an aluminum manganese alloy. It does polish up nicely

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