Thanks for the lesson on the fuel pump. Very informative. Was there a reason you did not just try to rebuild the old one? I have a 72 240Z and for some reason the pump is not pumping. Car has sat for about 8 years,. So i assumed the diaphragm had gone bad, but before i tried to find a rebuild kit i decided to take it apart, while still on the engine. All seems in good order for all i can see. The pump is not leaking oil or fuel. Just not pumping out fuel. It did suck fuel into the fuel filter?? MMmm A complicating factor is that my pump is surrounded by the air conditioner frame, and i had hoped i could rebuild without having to take the car apart to get to the pump. Any suggestions overall., Also any suggestions on rebuild kits?