Cooling system question

[Darin300]

Can someone please explain to me how the cooling system works.
I have have a book but it does not explain the system. I know it sucks up though the pump goes into the head, but why do the hoses go into the exhaust manifold? It is a 85hp Force L Drive year 1989. Also I disconnected the hose from the water pump, the one that comes out the side of the drive unit to flush cooling system, because I just changed the water pump. I used a water hose and let it run. I now know by reading that may not be the way to do it, anyways water got into the cylinder is that normal to flood the engine if the flushing is done the wrong way. I cleaned out cylinder, put the plugs in it, reconnected the water hose after verifying water pump operation and let engine idle for awhile in water tank seems ok. Little concerned why water got in cylinder. Did I fill the exhaust up because coolant hoses flow though there. I have no idea, please a little info would be great!

 

[12Footer]

Re: Cooling system question

Those exhaust manifolds are also called "heat erxchangers". They serve the same porpuse as a radiator does on the car. They are expensive to replace, too (found that out the hard way).

Anyhoo, just like an old steam heater only in reverse, water is circulated thru it, and it removes heat.
The water in the jugs was due to you injecting water directly into the exhaust (from the way I understood your explanation of events). the exhaust is exhausting both circulated water and exhaust directly from the cylinders, because that is where they are discarded. And since you were forcing water into the thing backwards, you got that result.

It should be fine, because you obviously caught it in time.