I just replaced my injector pump thanks to Diesel Dans video, you would think I've done it 100 times as good as it went, but now I have a oil leak that is either behind the data plate or on the bottom rivit on the data plate on the side of the timing cover. Any ideas.

Thanks,
Ronnie

 

Did you fubar the o-ring on pump during install?
Clean it off with engine cleaner or brake cleaner and what while idling.