[marty in Ohio]

Last week we put on a new leakless water pump and a new aluminum two blade fan. We put the fan on the pump shaft and put on the bolt but could not turn the fan (this was off the car.) Found that the fan was rubbing on the pump casting. Included with the pump was an instruction sheet stating that they may not fit and the pump casting may need to be ground down (Of course you always read the instructions later.) After a lot of grinding and filing we got it to fit. Has anybody else found this problem?

Marty