Rebuildable Fuel Pump

Yeah, that's a serviceable "turret" style, not crimped. Pop the screws and service the diaphragm, spring and check valves. The crimped ones are not serviceable unless you got the ability to recrimp the diaphragm. I tried to cut the crimp with a grinder and got it apart with no damage but I had to put it in a vice to get it back to where I could attempt to seal it back up. I tried to hit the seam very lightly with some tacks from a mig welder but it melted a hole in the diaphragm. It was more of an experiment to see if I could do it as I had another pump already.