1986 Mercruiser sterndrive on the port side of my boat is making a sound whenever I turn the wheel. If going straight, no sound. Turning left seems a little worse than turning right. The sound is a little more than a rattle but not quite a loud clunk (somewhere in between). Almost didnt even notice it, but after a few turns I started wondering what that extra noise was. As far as I can tell it is coming from around the drive somewhere. I did not test to see if it still did this when it was not in gear. Mechanic went thru and greased gimbal and ujoints and everything this week before putting the boat in the water, he said they all looked fine when he was putting everything back together... any ideas?