Why not drill it on the white line so the oil will go to the adjusting screw and pushrod cup? How much oil can get through the screw threads with it going through the screw hole? Would this give it more oil?
The problem is not with the oil going down to the pushrod tip as it was designed. The problem is they didn't plug the access hole they made when they drilled the passage
By the way that adjusting screw tip in the picture is fried. But the picture doesn't show it.
