spun my prop today and i did have a spare. unfortunately it was sitting at home. once i got home i did the repair in about 5 minutes. 55 psi torque sound about right for a 1996 merc 150 hp? my question is how do i get the old rubber hub out of the prop without doing damage to it. can it be heated without making the aluminum brittle? i tried pounding on it with an impact socket the same diameter as the hole in the prop on a block of wood with a sledge hammer, but its not budging. i dont want to get crazy with my blows incase i miss...think that will defete the purpose.lol. heat seems like my only option right now. thanks for any help.