In August I docked my boat with all gauges running normal, all sounds were normal, no indications of any problems. Two weeks later went to start engines and starboard immediately stopped solid. Starter would not move it. Checked fluids and coolant was down (later checked 1 quart).
Twins v. single? LOL. I completed my summer cruise plans on port only.
Friday with trans removed the problem became obvious. Two damper springs were awol, wedged between the housing and flywheel. No warnings.
Parts will be ordered and both engines will have new dampers installed.
The old one missing 2 springs and parts of others. Rest were loose. Port engine damper had all loose springs. Both replaced. Not at all a difficult DIY job.