Vibration Under Power Jim Jaeschke 5/1/1998 Hull #: 73 Last summer I always felt that there was just a little too much vibration when under power. This winter I took the propeller off sent it to Michigan Wheel. They found that there was a burr in the taper of the propeller. I also took some valve grinding compound and ground the tapers on the shaft and propeller to match. This helped to reduce the vibration level.