I can't seem to locate my Bavaria manual. And, not sure if it evens provides assistance. However, I need to change my shut off as I was cleaning my strainer and still had water coming into the boat while in the closed position.
To best describe the base is triangle with 3 bolts securing it to the fiberglass. A 1-1/4" wrench would snug the strainer to the seacock. I'll see if I can log in w my phone to add photo.
Seacock
That is not a standard Bavaria fitting. On a saildrive engine the normal water intake is through the leg and you will find a valve, or more likely in your case a blanking plug on the port side of the saildrive housing.
Would I be right in thinking that you are in the US as I think the valve and strainer you have is made by Groco. It is not unusual to add this direct water intake, but it really is not necessary and would suggest you revert to the standard Bavaria/Volvo system using the built in water intake and a water strainer mounted above the waterline on the starboard side of the engine compartment. Some people have both intakes with a changeover valve so that either can be used.
It is possible that the waterways in the saildrive leg are corroded or blocked up a bit, same happened to me on the previous boat - so I had a separate one fitted.
Yes, that is quite possible, but not common, although in some areas mussels etc can grow in the waterways and a direct intake is easier to rod clean. Seems the boat has other problems with the drive so close inspection is needed when it is out of the water.
Thanks, going to haul out this weekend and make repair.