I was doing some maintenance to the motor, its a 1986ish Mercury inline 6, and I pulled the prop to check to see if there was any line wrapped around the shaft and to re-grease the shaft and found these two things wedged behind the thrust washer between it and the inside edge of the lower unit housing. One is a screw and the other appears to be a piece of aluminum. What should I be looking for to find out what this could be? The motor runs "fine". I think it could run better if I could tune the carbs a little better but doesn't have any big issues.
Also, it appears they came through the exhaust. Is there something I should be concerned about being messed up somewhere else?
Also, it appears they came through the exhaust. Is there something I should be concerned about being messed up somewhere else?