Can you tell me how you guys do your adjustment? I have to set a new motor and I think I over tightened them. Did all the things your surpost to do. Set the exhaust valve to opening then loosened the adjuster and then backed off the lock. Waited a minute or so, let the lifter bleed up. Adjusted the nut till the rod started to get tight. Then a half of turn. I rechecked some I did by the feel of the rocker. At first they seemed way to loose. So I rechecked a few and restarted the procudure.. What Am I doing wrong? Sould there be any play side to side? Scorpion 1.6.