Hi all, I have a 16ft Invader with a 1970's Mercury 1150 (115hp) inline 6 motor thunderbolt. About 2 nights ago I hit my propeller running aground and chipped one of my blades tips while loading the boat back on trailer. Last night, after launching and getting out in the water, my boat would not go over 5mph no matter how much gas I give it. It idles good and boat slowly moves at 1/3 throttle, but once I give it 1/2 or full throttle, the engine would just rev really high and boat just maintains 5mph speed. Boat just wont get up and it seems like the propeller isnt getting any power to it. Did I damage something when i hit the blade? Im a totally new at marine engines, can anyone please give me some ideas and advice on what to do? Thanks!
