nauti dreams
New Member
- Aug 3, 2017
- 21
- Boat Info
- 1978 220 overnighter
- Engines
- 188 mercruiser w/ alpha 1 gen 2 outdrive
I recently got a 76 220 ov it has a 302 and a alpha 1 out drive.
I'm one of those people who like to modify things to make them last as long as possible. I am converting the engine to a closed loop so I can run antifreeze with a heat exchanger. I want the water from the out drive to cool the manifolds only and have a separate pump for the raw water to go through the heat exchanger. I figure I only need 10-12 GPM to go through the heat exchanger.
Would a direct drive or belt drive raw water pump be overkill. Is there an electric option?
The pump would never see hot water, after the exchanger it will dump over board.
Thanks
I'm one of those people who like to modify things to make them last as long as possible. I am converting the engine to a closed loop so I can run antifreeze with a heat exchanger. I want the water from the out drive to cool the manifolds only and have a separate pump for the raw water to go through the heat exchanger. I figure I only need 10-12 GPM to go through the heat exchanger.
Would a direct drive or belt drive raw water pump be overkill. Is there an electric option?
The pump would never see hot water, after the exchanger it will dump over board.
Thanks