So I just about had a heart attack. I was putting in new autolite XP5703s and watched a YouTube video of someone else doing it. I used a torque wrench set to 18 ft. Lbs and then did an extra half turn like autolite recommends. However after a quarter turn it got suddenly super easy to turn and figured that okay so that was the gasket collapsing so I turned a little bit more to get to the half turn and then zero resistance.... The threads from the spark plug had ripped straight off. I luckily got it out just fine but holy shit I about had a heart attack. I was able to get it out pretty easily luckily. Also my old plugs look like they were getting way too hot. 18k miles pic enclosed. So... I'm assuming my brand new torque wrench blows(first time using it) and it was way more than 18. I need some recommendations on what I should do.
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