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Thread: plug reading on DL
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Old 02-11-2008 | 11:34 PM
  #18  
captinjohn
 
Joined: Jan 2002
Posts: 12,957
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From: Hesperia Michigan, MI
Default RE: plug reading on DL
The center post of some spark plugs have a spline look to them. That spline makes for edges...that can help the spark jump the gap! Capt,n
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