Mt friends and I were adjusting my rockers and I thought I would ask all you engine builders(I'm on my 4th) a question regarding adjustments. Back in the late 50's and 60's I always adjusted the rockers by taking off the valve cover and tightning them down until the racket went away. If I tightned them to much you'd know right away and back adjustments off a quarter turn. I still do this and was wondering if any one else still practices this. Beside being messy with the oil spraying the engine, I never had any problems doing it this way, but again I'm talking about older engines with hydraulic cams.