help with impeller on old Hayward SuperPump

[jose107]

ok I cant seem to find where I can post the pics, so I will wait for some one to tell me how, in the mean time I will explain my problem, I tried to change an impeller on a superpump, 1 hp....done it a couple of times, so it wasn't something new to me, what I did encounter was that the defuser I had never seen before, after I took every thing apart, put new seals, I placed the plate where it goes, then the impeller.....when I turned on motor just to check that every thing was ok, impeller got stuck in the plate....now I could just take it out and go buy another one, but at pool place, even though the guy was not sure told me that because of the look of the defuser, it was an old model and that that was the issue any sugestions?