No oil to rollers

The hole in the top will oil the roller. It needs way less oil than the shaft. There is plenty of oil moving around in the rocker boxes to oil the tips.

You'd be surprised how much oil will come out that little hole in the top.

Run it as long as the shafts and adjusters are getting oil.
Looks just like mine, but mine have a wider groove in the center-inside for oil , 'If I remember right. I went full time oiling to the rockers, no problems after getting the amount to them adjusted. Had to keep cutting it down from where I started.(was too much)