I have 2 props for a Mark 25. One has the hub sticking out further than the other. The one sticking out seems wrong as it does not fit right. I have tapped on the hub with a punch and hammer but the hub does not move. I don’t want to pound too hard and damage something. Are these pressed in? Do I need a press to fix this one? Should I just hit it harder? What is the correct way to fix this?