C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

These plugs finished?

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Old Sep 12, 2012 | 07:05 PM
  #1  
bassackwards's Avatar
bassackwards
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Default These plugs finished?



Do they look worn out? I've already trashed them and I broke one removing it but the gaps look huge to me, especially compared to the Autolites I replaced them with that were .050.

Driver's side tomorrow!
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Old Sep 12, 2012 | 07:51 PM
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Think you are better off replacing them. I agree, the gap looks very large. It also looks like you are running a little rich.

The center electrode also looks rounded instead of being flat with a sharp edge.
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Old Sep 12, 2012 | 08:42 PM
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Yea, WTF? Did you pull these out of your vette?
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Old Sep 12, 2012 | 09:40 PM
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I just gotthe car Sat and it has an intermittant miss and I saw sparks so it was time to change them.

They look pretty rough.

What's with the black on the ceramic where the boot goes?
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Old Sep 12, 2012 | 10:05 PM
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The dark color on the white ceramic is dirt, grease, grime build up after years of use.
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Old Sep 12, 2012 | 10:08 PM
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Pull those out of a lake?

Agree they are more than old, time for new
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