1600 vw engine you are having one rocker arm that keeps going out of adjustment you check rocker and adjustment screw and nut they are fine Is there some thing internal going on Ive been a bug owner f?
ThereÊis a good chance that somethingÊisÊgoing on internally with the engine. It is best to have a mechanic perform a diagnostic to determine if the rocker does in fact need to be replaced.