Echo 400evl oiler help needed

Was given an echo 400evl with broken recoil. Got that fixed and the motor going but no bar oil. Line from the tank is OK and flows good.Took the oiler pump out and cleaned it of some trash. Seems to pump when I work it with my fingers. The design of the pump and means adjustment would indicate that screwing it in too far would keep it from working just as not getting it in far enough. It was not all the way screwed in when I started on it. Anybody know how far it screws in before you add the rotation limiter/adjustment stop? Thanks in advance.

Thanks to Mike who Emailed me with the fix. Not sure how many Echos have a pump like this one but I can assure you it will pump nothing if screwed all the way into the case. Mine pumps the most when it is 1 turn out from clear in and that is where I have the stop set. Hope the info helps some others.