Loubloub Posted August 15, 2020 Share Posted August 15, 2020 I just pulled my four plugs and they seem to be great. Electrodes seem new and they look like they're the right color. Might have been changed recently? My hesitation is with a gooey deposit they all had at the seal on the thread. I am wondering what might cause this and if it's cause for concern? Link to comment Share on other sites More sharing options...
Member Contributer Thumbs Posted August 15, 2020 Member Contributer Share Posted August 15, 2020 Grease or oil on the thread when they were installed Link to comment Share on other sites More sharing options...
Loubloub Posted August 15, 2020 Author Share Posted August 15, 2020 1 hour ago, Thumbs said: Grease or oil on the thread when they were installed You mean like they used grease or oil as an anti cease agent? I just saw a video that explains that more expensive (silver colored) spark plugs get a special treatment or coating that prevents them from sticking or jamming. Anti cease paste can be used on cheap plugs (black appearance). But normally if you follow torque specifications it shouldn't be necessary. But thank you for your answer. That makes sense. Link to comment Share on other sites More sharing options...
Loubloub Posted August 15, 2020 Author Share Posted August 15, 2020 P.S. they stated that this practice is dangerous because lube can lead to over tightening. Link to comment Share on other sites More sharing options...
Loubloub Posted August 15, 2020 Author Share Posted August 15, 2020 https://ngksparkplugs.com/en/resources/5-things-you-should-know-about-spark-plugs Link to comment Share on other sites More sharing options...
squirrelman Posted August 16, 2020 Share Posted August 16, 2020 in alloy heads it's best to remove plugs in a cool engine. Link to comment Share on other sites More sharing options...
squirrelman Posted August 16, 2020 Share Posted August 16, 2020 7 hours ago, Loubloub said: I just pulled my four plugs and they seem to be great. Electrodes seem new and they look like they're the right color. Might have been changed recently? My hesitation is with a gooey deposit they all had at the seal on the thread. I am wondering what might cause this and if it's cause for concern? gaps look excessive 2 me. no worries about goo. Link to comment Share on other sites More sharing options...
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