In Reply to: 9N water pump posted by cage on November 08, 2018 at 16:23:08:
Easiest way to fix that is to remove the water pump. Even if you could get the pulley off, I don't think there is any way to press it back on unless you can get to both ends of the shaft. If the water pump is old, I'd just buy a rebuilt one and let a rebuild shop deal with the busted bolt. If I had a field that needed to be cut, I'd bolt the fan on with the 3 good bolts and fix it when I have the replacement pump and gasket.