Once to temp, no exhaust issues of meaningful notability, although underwater discharge under load would mask quite a bit. At the dock, it's as I would expect from a sloppy old generation in good order.
As long as your not leaving a trail of dead fish , sound like it’s running like a top! At the slip, so long no one is calling in the fire trucks thinking your on fire , then your good. Still good for another couple 1000 hrs.
Well, it’s a Dee Troit. Start it cold and someone will dial fire rescue. Always switch on the block heaters the night before you go.
Check out new thread on induced alternator issue. https://www.yachtforums.com/threads/30si-issue.37221/#post-341384