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Old 08-21-2013, 02:13 PM
blackcreek blackcreek is offline
TT Enthusiast
 
Join Date: Aug 2006
Boat: 1997 prostar 205 lt1
Location: Jacksonville Fl
Posts: 192
Exact same thing happened to me except the shaft broke with a bang. Mine broke right in front of the strut bearing. Turns out my strut was slightly bent by previous owner causing a slight bending force on the prop shaft. The shaft only needs to be out of alignment a very small amount to cause problems over the long run. If you never checked your alignment over the life of the boat I imagine sagging engine mounts or even small bumps on the strut could cause enough misalignment to cause flexing of the shaft. My broken shaft was straight and had a clean cut just in front the strut bearing. The shaft will flex a bit without bending but I guess it's just like bending a piece of metal over and over, eventually it breaks. Cost me a new strut, prop shaft, and a prop rebuild to make it right. I spent an entire afternoon getting the alignment perfect on the install.
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