I did all my valve seals today, went good. slow but done. NOW! I tightened the rockers with the cylinder at TDC. THEN! I started it, loosened each rocker until it chattered, then till it didn't then 1 full turn.. I think this is right. I did them all but!!! I have a good strong top end kinda knock, maybe a stuck lifter? Maybe a noisy rocker arm?! Gimme your ideas and any help you can! Did i adjust my valves right? How do i make a stuck lifter un stuck? HELP!! Wally PS: It doesn't smoke when i start it now!