Double check all the oil gallery plugs. Their should be 2 plugs located on the deck towards the ends. I see in the pic head on the left has one, but I cant see the others. Hold the head up, deck parallel to the floor and shake it real good to dislodge any shavings from being decked. If shavings fall out, take them back so they can finish cleaning. Should have 2 bigger gallery plugs on both ends of head. Only one small plug where the tentioner mounts but is at the rear. The tentioner location in the front will be open/not plugged.