Home › Forums › Gen III / Gen IV › Tell Me How These Spark Plugs Look [PIC]

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    • 01sapphirebob
      Member
      July 19, 2015 at 2:49 pm
      Post count: 2280
      #219943

      The one on the far right looks a little dirtier then the other but otherwise ok.

    • Shannon Whitehead
      Keymaster
      July 19, 2015 at 3:27 pm
      Post count: 274799
      #219946

      Hard to tell from those pics…are the silver flecks present metallic, or something else? If so, it could be signs of detonation…otherwise, they are running pretty clean from what I can see.

    • 01sapphirebob
      Member
      July 19, 2015 at 4:00 pm
      Post count: 2280
      #219950

      Steve M said:
      Hard to tell from those pics…are the silver flecks present metallic, or something else? If so, it could be signs of detonation…otherwise, they are running pretty clean from what I can see.

      I think thats copper anti-seize. I put it on the threads of my GEN II when I did the plugs and wires this spring.

    • Shannon Whitehead
      Keymaster
      July 19, 2015 at 4:09 pm
      Post count: 274799
      #219952

      Yep, used antiseize last time, not again . Two were not torqued down properly. Just going to put a tiny bit of clean engine oil on the threads.

      All cathodes and electrodes are identical across all ten.

    • Shannon Whitehead
      Keymaster
      June 11, 2025 at 2:21 am
      Post count: 274799
      #19496

      Doing some other work and changed the spark plugs out while I had valve covers off and headers off the driver’s side. Not more than 8K miles on these I would guess, since it has not been that long since I changed these…about a year. How do these look to you guys? School me please. Also, while I am ashamed to admit it, apparently I did not torque the one in the rear properly as it was just a bit more than hand tight. 🙁

      These are Bosch plugs in the picture, going back to OE Champion plugs this time.

      We still doing .05 gap as per spec? No FI, just bolt on mods, 2008…

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