Quote:
Originally Posted by admranger
Doing it by feel is dangerous for armchair mechanics.
Buy a torque wrench and do it right if you don't have a lot of experience wrenching. A torque wrench costs way less than fixing a stripped spark plug hole.
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Good point. I have been wrenching for almost 30 years and built many cars and engines. And changed more plugs in AL heads than you could imagine. Back in my hot rodding and drag racing days I used to change plugs once a month and did valve lash every couple months too. So I can very easily get ~20 by feel. But not everybody has that experience to draw from
