Seawater pump change out
- Thread starter CHIEFRAY
- Start date
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If you have answers, please help by responding to the unanswered posts.
If you have answers, please help by responding to the unanswered posts.
Cigatoo
Guru
If the pump is above the static water line no need to shut off the seacock / “water line valve”
sunchaser
Guru
- Joined
- Apr 9, 2008
- Messages
- 10,200
- Location
- usa
- Vessel Name
- sunchaser V
- Vessel Make
- DeFever 48 (sold)
My experience with many Mercruisers. If the pump pulls water through a stern drive lift the drive out of the water provided the drive doesn’t re- immerse a bit with a change in trim due to body weight.
If the pump pulls water through a hull valve likely yes, - this arrangement should have a strainer after the valve.
Is the pump bad or just changing impellers?
If the pump pulls water through a hull valve likely yes, - this arrangement should have a strainer after the valve.
Is the pump bad or just changing impellers?
Gdavid
Guru
The bravo models have a belt driven raw water pump rather than the outboard style of pump in the lower units used in the alpha models
The water inlet valve should be closed, the pump is located down low, almost certainly below the water line.
tiltrider1
Guru
- Joined
- Aug 2, 2017
- Messages
- 4,374
- Location
- Pacific North West
- Vessel Name
- AZZURRA
- Vessel Make
- Ocean Alexander 54
I find this an odd question. Why wouldn’t you close the valve for safety reasons. Unless your valve is stuck and you are asking if it can be done with out closing the valve. In that case, I wouldn’t try it.
C lectric
Guru
Shut the valve off. Even if it is above water level the question is how much above. If minimal and the boat is rocked enough the boat could start to take on water and when there is enough, sink or at the very least damage a lot of other stuff.
