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Cobra Forums
The Terminator
Engine/Tuning
please help???spark plug issue
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<blockquote data-quote="MalcolmV8" data-source="post: 14287352" data-attributes="member: 8854"><p>I've seen this on motors running to much timing. Detonation or knock kept compressing the plug like that. That's possibly why someone said switch to E85. You could try pulling timing from your tune and see if the issue goes away. Also look very closely on the top of the plug and look for any signs of physical contact. Was the piston actually touching it? I'm guessing not. Take a flash light and look inside the spark plug hole very carefully at the piston at TDC. Any signs of contact or marks there?</p><p></p><p>Also which plug exactly are you running? Hoping you didn't put a longer plug in that's contacting the piston.</p></blockquote><p></p>
[QUOTE="MalcolmV8, post: 14287352, member: 8854"] I've seen this on motors running to much timing. Detonation or knock kept compressing the plug like that. That's possibly why someone said switch to E85. You could try pulling timing from your tune and see if the issue goes away. Also look very closely on the top of the plug and look for any signs of physical contact. Was the piston actually touching it? I'm guessing not. Take a flash light and look inside the spark plug hole very carefully at the piston at TDC. Any signs of contact or marks there? Also which plug exactly are you running? Hoping you didn't put a longer plug in that's contacting the piston. [/QUOTE]
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please help???spark plug issue
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