2.3 pinto fuel pump

The original pump was replaced and shortly it dripped oil from the bottom. It started as a drop but now it is a lot worse. I plan to put a new one on. The gas always drains down after sitting a short while. Does a check valve help that problem? Would a check valve also have to be put into the return line?

I haven't worked on a Pinto in over 35 years, but I don't remember them having a return line. A bad seal in the pump will cause that oil leak. Best to go with a new one. I'd wait on a check valve till after the new pump since a good pump will act as a check valve.

Thank you for the info. I plan to put a new pump on and see what happens.