Nissan Repair: water pump, fan clutch, type clutch

Question
this might not be your area of expetise but here goes i have a 1992 m30 infiniti i changed the fan clutch which froze right after that i started blowing water pumps 3 to be exact  would a warped shaft blow the seal on a water pump   or the wrong fan clutch  i'm kind of stumped but it started blowing pumps right after i replaced the fan clutch

Answer
I would go to a factory fan and clutch assembly.  That would take care of the out of balance condition that is taking your waterpumps out.  I had a 280Z with the same problem.  I bought a clutchfan assembly from Kragen when I lived in California.  I ended up going through two waterpumps until I went to a wrecking yard and got the original type clutch.