We have received vibration in the propeller shaft or propeller when we run. Higher speeds more vibration. When the engine is neutral, it is smooth and fine, so it must have to do with the propeller shaft or propeller.
The boat we have just bought, is a Beneteau Oceanis 343 with water cooling on the shaft. But the first 600 Nm we noticed nothing, from Holland to Sweden.
We have not gone against the seabed. Do you think we need to lift up and check? Is soon holiday...I am new to this forum and hope someone can help me. Tend to be much of knowledge in this kind of forum.