Quick question: How cold should the engine be when putting the plugs in? I was a bit impatient today and put them in when the engine was still slightly warm... the valve cover was cool enough to touch by hand, but the plugs were still quite hot.
I torqued the new plugs to 20 ft lbs, which was around 1/3 turn after hand tightening.
Is this is ok? Or should I retourqe them tomorrow morning?
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