The nut on the rocker did back off. The Thread Protrusion... was only one or two threads sticking out of the nut. The others had about 2 or 3 threads sticking out.
I have not put the valve cover back on yet. I had the spark plugs out so I could turn it over by pulling on the belts. So I will check those other two items you mentioned.
Is there a specific way to look at a Lifter and know if it is collapsed?
