power steering pump problem

It's not leaking of making noise unless I loosen the belt then it rattles.
All the bolts are tight its like the belt is pulling the pump, at an angle ,towards the water pump, you can see the bracket bending.
Bruce

Stock setup? Take off the belt and hand turn the pulley - how's it feel? Pulley warped? If the line up between the water pump pulley and the pump pulley is off that's no good.