no i never took the bottom end apart, i want to take a look in there but i just dont have anwhere to get that far in the engine, i live in an apartment and i do all the work on the side of the road lol, it sounds like its coming from under the valve cover, im thinking that maybe the rockers are dirty and were giving me the wrong indication when i adjusted the valves, it sounds like the #1 or 2 cylinder area