Hello all, While we were moving our boat to the yard to get it repaired (see my previous post about a jetski hitting us), we motored about 12 miles. For reasons I can get into later, we were going only about 4 knots. We were in the Gulf of Mexico and the going up Tampa Bay in light conditions with relatively minimal seas. About every 30 or 45 seconds, without any particular connection to waves, we got a quiet but discernible "thump" or "thunk" that I could feel through my feet. It seemed to be most noticeable when I propped my foot on the starboard stern locker. That is the propane locker. I looked in there, and did not see the tank rocking or other reason for the noise.
It did not seem to be linked to waves, as we hit multiple rocking boat wakes and other wave forms, so I saw no consistency there. Nor did I see any link to revving the engine, shifting in & out of gear, etc. There was no indication of a crab pot bouy or anything else, either, but I haven't been under the boat. Any idea what might be causing the noise? Would a failing motor mount cause this, and how would I diagnose it? Thanks for your insights, Bruce Whitmore 1994 C&C 37/40+ "Astralis"Madeira Beach, FL (847) 404-5092 (mobile) [email protected]
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