Thread: Valves just wont shut up!

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I agree with the straight edge to check the studs but I have had some bad luck with the dimpled lock nut and the stock used studs loosening up also what lift cam and cruise rpm does this thing see with 1.6's and a cam with a little lift if you have stock springs you could be binding or stressing that locknut or forcing the studs out of the head stock springs at best are only good for about .480 lift. I would adjust one valve at a time warm with the engine off doing the zero lash method getting one valve open on each cylinder and adusting the closed one to zero lash then 9/16's to 5/8's of a turn past has always worked for me...let me know what else you have, also are you sure its the rockers? just cause I have had wrist pins, thrust bearings, loose torque converter bolts make a clattering noise at a set rpm...just curious