I am examining all of my options. I have found a couple of closed cooling systems to retro-fit an Alpha V8 where sea water comes up through the OD and into the heat exchanger to cool down antifreeze that passes through the block. The kit does not require an external water pump/pick up. It relies solely on the ODs pickup water pump, but I am sure the motor's circulating pump assists. The kit's information was not specific if it also passed antifreeze through the exhaust manifolds. I prefer to purchase kit where the risers would be the only IRON passing sea water.
Would one of these type kits work sufficiently, even cooling down exhaust manifolds? Most I have seen work from a dedicated pump like on Bravo drives.
I realize that I most likely would clog a heat exchanger, if the motor had experienced a lot of salt water over time. But, I may replace motors too or buy a fresh water boat.
Any suggestions!
Would one of these type kits work sufficiently, even cooling down exhaust manifolds? Most I have seen work from a dedicated pump like on Bravo drives.
I realize that I most likely would clog a heat exchanger, if the motor had experienced a lot of salt water over time. But, I may replace motors too or buy a fresh water boat.
Any suggestions!