Hi all any help will be greatly appreciated. I just got a 86 galaxy with a 140 series mercruiserI/o. first when you grab the propeller you can move it in and out a little more than a 1/4 inch,and the shaft its bolted to moves with it. its not a nut tight problem I just not sure if its to move that much. 2nd when I put it in gear and throddle up when its out of water it makes a fast vibration noise only above 2000 rpm. I think the 2 are related and this might be normal im just not sure. I had it out twice over the weekend in water everything seems fine. I just don't want melt any bearings. I red the trouble shooting in the seloc manual and didn't really anser my questions. I don't want to tear it apart if its not needed. Any other things that you might know about my boat or motor <tips> would be great cant wait for warmer weather. thanks Columbia pa Ryan