I did it on my long gone 86 Toyoto motorhomes pump as the motorhome had not been started in over a year and the pump was frozen. I pried the crimp, pulled out the inards cleaned the varnish with carb cleaner reassembled it ,tapped the crimp back with a jewelers hammer and then sealed the crimped end with JB weld.It worked fine after that.
The funny part of the whole operation was that I cut a hole in the floor to access the plate on top of the gas tank to pull the in tank pump out as dropping the tank looked to be a very hard job.......
William Rogers.......