I pulled the offending connection apart tonight and put silicone on all potentially loose tubes. There was certanly a small amount of oil in it. It does seem to be a one way valve. It was keeping the oil from getting past and I could blow the oil out.
Here is a picture of the pump. Maybee someone can tell me why the top half would be painted white? Would this be done to indicate a rebuild? Is the one missing screw a potential source of the oil leak? Is the small amount of oil coming from the seals an indication that the part is shagged out?
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