TwinTurbo.NET: Nissan 300ZX forum - Ditto
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Subject Ditto
     
Posted by megaDan on April 30, 2021 at 9:05 PM
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In Reply To My car developed a misfire a few years ago. posted by JMartz on April 30, 2021 at 05:17 PM
     
Message I've had a few new spark plugs with cracked insulators right out of the box. Really hard to see sometimes, so now my install procedure is to wipe the insulator with a slightly dirty towel; any crack will trap dirt and make it super visible.

     
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