re: Benjamin pellet gun repair advice/help needed

Flip it over and extend the pump. Kinda near the hinge end you'll see a hole and the piston will come up past it. Drop some oil in that hole and saturate the thing. Put some on the other side of the piston in the tube, too and work it a few times. You should start to get some compression. Fire it and repeat. You should eventually get a bit of oil coming out almost like smoke when you shoot it. Also oil the other moving parts. It ain't hard.