- Aug 26, 2010
- 189
- Boat Info
- Sea Ray 550 Sedan Bridge 2005.
- Engines
- MAN 900
Twin Disc MG-5114
Hello, I am having a problem with my master head. I replaced everything from the floor up in the head, down below I replaced duck valves, I replaced the bellows, I replaced the vacuum switch twice because Dometic and a local repair shop said they are having major problems with their switches because they are no longer made in-house. I checked with a vacuum gauge and the leak is down below. To make matters a little worst while the pump is running I could just slightly touch the vacuum switch and it would turn off and hold the vacuum for hours if not days, meaning it is right at the edge of making enough vacuum. Now it will not go off at all, so the next step is to change the seal at the elbow of the accumulating tank. A little crazy but I am thinking of going ahead and replacing the hose as well, a couple of suggestions were to hook the hose to the new hose and pull through. Sounds too easy, any thoughts would be appreciated especially from somebody who has done it in the past.