Spark Plugs

[gsxr]

I'm a big fan of anti-seize for anything screwed into aluminum threads, and always wondered if it was a good idea for spark plugs... then I found the NGK document. I still use anti-seize on almost everything else though - just be careful to reduce the torque spec!

 

[ryanjl]

There's an NGK tech bulletin advising against this practice... here's a link:

http://w124performance.com/docs/general/spark_plugs/NGK_TB-0630111_antisieze.pdf

File also attached for reference.

Well what do they know?

Haha.

Yeah, I've always been careful when tightening up the spark plugs after using anti-seize, because it's easy to tell when they bottom out.

That said, if using anti-seize is unnecessary, I probably won't use it if I change my plugs on my LR4.

 

[ktm525]

I'm a big fan of anti-seize for anything screwed into aluminum threads, and always wondered if it was a good idea for spark plugs... then I found the NGK document. I still use anti-seize on almost everything else though - just be careful to reduce the torque spec!

 

[ktm525]

NGK does not have a torque spec per se. Just a 1/2 turn after bottoming. Thinking about it that would not change anti seize or not. Perhaps that is why they went away from a specific # value.