I fully understand your view on it. thanx alot man. the issue concerning oil...i've been putting fully synthetic oil in there so i doubt it the oil factor causing the problem. even last oil change, i put a quart of lucas oil stabilizer in there to stop any leaks or anything because the oil change before, i noticed oil leaking on the bottom by the oil pan and area and there was also oil on the spark plugs and the wire boots...all four of them. so i went and bought a set of gaskets for the valve cover and it came with the spark plugs seals and etc. im gonna change that soon but i don't know how a worn out gasket would cause a noise. when i open up the oil cap, i can see that the cynlinder head is really brown...so my guess was maybe a worn out head. but im not a professional so i came here. maybe only god knows whats wrong in there. if nothing works out, then i guess ill just replace the head over the summer.