[SummerSledSix]

Had the engine out to replace the gaskets and insulators on my intake runners and the O-rings on my fuel injectors (air leak). Decided to tweak the valves (my second time at this) while I was at it.

Put the engine back in, fired it up, got a knocking sound right away (no such sound before I did all this). Called the local braintrust, "check your adjustment". Dropped the engine AGAIN (BTW, anybody with a six, ie a 3.2, able to get the lower rocker covers off WITHOUT dropping the engine?), tweaked the valves AGAIN (exactly per the tech article), and checked the runners / injectors. Got the engine back in, fired her up, pretty quiet until she came up to temp, now the knocking sound is back, though not as loud. Sounds like it's on the 4-5-6 side.

Two questions: can anybody "decode" the knock thing for me? Also, and this the bigger question:

How "tight" should the feeler gauge be clamped in between the rocker and the valve stem when you are setting the gap? How do you tell where the sweet spot is??? Seems like my more recent effort was better than my earlier one, but I don't know why...