Motor was running great. Had engine wide open for a few minutes. Heard a slight change in the sound of engine. Brought it back to the dock. Heard a rattle or knock when I turned it off. Tried to restart engine but would not start. But when it attempted to turn I heard knocking and clanging. I found that most of the bolts on the flywheel had broke off. Have NO idea how this happened. I plan to pull the engine to see what I am up against. Hopefully just replacing the bolts. The main concern I have is could this have caused internal problems. Has anyone seen this happen and if so what was the outcome? Thanks
1987 Mercruiser 165 3.7
1987 Mercruiser 165 3.7