Earlier today I adjusted my valves with help from a family member on my h23 engine. It sounds great now, the noise it was making is now gone. Who knows if the other owners of the car ever had this done. All 16 valves were out of adjustment. I also replaced my valve cover gasket. Do I need to re-check the valves in a week or two? My uncle isn't sure if they'll need to be checked again or if they can just be left alone.

 

you dont have to check them again...should be good for a long while