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My old lead at Piedmont told me to stop using anti-seize on spark plugs and he was right
Back in 2021 at Piedmont, my lead Frank told me to stop putting anti-seize on spark plugs in the Lycoming engines. I argued with him for like 10 minutes saying it prevents galling and every mechanic I knew used it. He made me torque one dry right in front of him and then we pulled it 50 hours later to check, no issues at all. I learned the hard way that anti-seize messes with your torque readings and can lead to over-torquing in aluminum heads. Has anyone else had a senior tech change their mind on something basic like this?
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quinn_fox3mo ago
Man, I was the exact same way! I used anti-seize on everything for years until an old timer at my last shop showed me the torque spec difference with a dry plug. Totally opened my eyes, now I only use it on steel bolts going into aluminum where the manual actually calls for it.
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the_jennifer3mo ago
Read a study once that said anti-seize can throw off torque by up to 30 percent on plugs.
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