Hey Clanton, I don't understand your question about the temperature? ? Yes, the gear fits snug on the snout, just wanted to make sure nothing was "a miss". What do you think could be impeding oil flow?? A clogged oil galley? ?? The pump makes good pressure 70 cold @ fire up and between 50- 55 @ warm idle. I've been running the Valveoline VR 50wt racing oil for the extra zinc?? Could this be a cause??