I set them at 1/2-3/4 turn of preload, and the valves are shut all the way.
They were silent when I adjusted them, and they've progressively gotten louder and louder.
I'm not sure if they are loosening, but I'm going to pull the valve covers and see if they've loosened. If so, I want to know if I can use locktite.
It would suck to break off a rocker bolt from locktiting it, but it would suck just as bad to have a rocker come loose.
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