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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-07-2006, 06:45 PM   #1
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Default Eating plugs?

I put in a new set of NGK TR55 V-Powers gapped at .055" to replace the set of the same plugs I put in two years ago. The center electrode had worn down so that my gap was AT LEAST .1", more than twice what they were originally... I got both these sets pre-gapped from ZZP.

Is this typical of V-powers? Is this an indication of anything that is going on in my combustion process?
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Old 07-07-2006, 11:25 PM   #2
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I wonder if you aren't running to lean at top end, causing excessive heat..burning out your plugs?
Do u pull much KR top end?
Just a thought..
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Old 07-07-2006, 11:53 PM   #3
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0 to 4 degrees, typically.
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Old 07-08-2006, 12:25 AM   #4
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what color were the electrodes?
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Old 07-08-2006, 12:57 AM   #5
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Golden brown. The rear three were a little lighter. The front passenger plug (#1?) had some yellow spots on the ceramic around the electrode. The rest looked fine.
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