Black Powdery Substance in Spark Plug Cylinder

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Dec 6, 2010 | 11:18 PM

#21

bbarcher

Senior Member

Joined: May 2009

Posts: 178

Likes: 15

From: San Antonio, TX

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

Apr 3, 2011 | 04:53 AM

#22

trentaiken

Junior Member

Joined: Jan 2011

Posts: 10

Likes: 1

From: New Bern North Carolina

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

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Tags

aluminum, black, corrosion, cover, cyclinder, cylinder, jaguar, plastic, plug, plugs, powder, powdery, sealing, silver, spark, substance, valve, xjs

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