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Newbie Forum: Beginner/newbie/general DSM modification questions. First mods, how to run 10's when you haven't run 12's yet, any tech question that doesn't fit in another tech forum. Probationary Members must limit their tech posts to this forum and sub-forums.

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Old 10-27-2004, 01:29 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #1 (permalink)
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symptoms of oversized spark plug gap


i checked the gap on my spark plugs today and they were at around .04 in. and my car is running fine. ### would some symptoms be of having the gap larger than its spossed to be? bad gas mileage, plugs wont last as long


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Old 10-27-2004, 04:14 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #2 (permalink)
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A bad "stutter" when going WOT is usually the biggest sign.

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Old 10-27-2004, 04:33 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #3 (permalink)
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Under high load, the spark may not be able to make the jump, which puts a really nasty load on your coils.
A plug won't change its gap that much, did you gap them wrong to start with?
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Old 10-27-2004, 04:39 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #4 (permalink)
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its almost like running a few ranges cooler plug also.
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Old 10-28-2004, 06:46 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #5 (permalink)
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Quote:
Originally Posted by Defiant
Under high load, the spark may not be able to make the jump, which puts a really nasty load on your coils.
A plug won't change its gap that much, did you gap them wrong to start with?
yea... i didnt have the right gapping tool, but now i do... i really asked the question to see if its was worth adjusting the gap(since the car was running fine) or just leaving it alone... thanks for the responses

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