Get a 7/8" racheting box end wrench, makes it easier to tighten the nut while pulling up on gen. pry with oak, metal rod, hand, or ?
I use a 5/8 round bar to pry up on the back, then a peice of wood wedged under that same bar to hold it, then another 5/8 rod under the mounting nut and across to the left water pump (behind the pulley) pull upon this rod then rachet the nut with the 7/8 wrench. its easier than it sounds..