They raised it to the deck level that day and all the way dry the next morning.
Found no obvious leak and it's still dry and floating.
On Monday he removed a head and exhaust starboard engine. Tuesday he was pounding on the wet sleeve that had raised by the stuck piston when he turned the engine some. I asked him why are you pounding on that sleeve with a sledge hammer. He's a mechanic I was told.
The exhaust port is 12" above the water and he left it open. It was dry and floating nice Wed. and my neighbor said at 10:30 that night it was fine.
I have a theory which involves the boat washers Wednesday and tug boat severe wake that suddenly hits on the beam in the middle of the night and can last several long, very long, minutes.