"Hi everyone, you've got a
"Hi everyone, you've got a newbie here, hoping to sound a few ideas. I've already followed El's advice on changing the drive bellows that had split, looked fairly awful inside, but the universals were incredibly smooth.
I've recently bought an old boat with an AQ170B, and am looking at adding a heat exchanger. This will mainly be used in salt water and I'm not too keen on the raw water in the engine. I live in New Zealand, land of the jet boat, which are all powered by converted auto engines, so a suitable exchanger is no problem.
Looking at the cooling system of this engine my pick is that the raw water system should be interupted between the oil cooler and the exhaust manifold to supply the exchanger.
It would be wise to keep the manifold raw water cooled, so the two copper pipes from the manifold to the thermostat housing should be interupted, and the two manifold connections joined together.
The fresh water side on the heat exchanger would be connected to the two connections on the thermostat housing; the cold side on the exchanger to the front most pipe, and the hot side to the left pipe.
Does this sound good to everyone?"
"Hi everyone, you've got a newbie here, hoping to sound a few ideas. I've already followed El's advice on changing the drive bellows that had split, looked fairly awful inside, but the universals were incredibly smooth.
I've recently bought an old boat with an AQ170B, and am looking at adding a heat exchanger. This will mainly be used in salt water and I'm not too keen on the raw water in the engine. I live in New Zealand, land of the jet boat, which are all powered by converted auto engines, so a suitable exchanger is no problem.
Looking at the cooling system of this engine my pick is that the raw water system should be interupted between the oil cooler and the exhaust manifold to supply the exchanger.
It would be wise to keep the manifold raw water cooled, so the two copper pipes from the manifold to the thermostat housing should be interupted, and the two manifold connections joined together.
The fresh water side on the heat exchanger would be connected to the two connections on the thermostat housing; the cold side on the exchanger to the front most pipe, and the hot side to the left pipe.
Does this sound good to everyone?"