cooling system johnson 9.9

[caper1221]

I need answers to the following basic questions about the cooling system on this motor.<br />1. Once it's sent up into the motor by the water pump/impeller, where does the water go that is expelled out of the exhaust port and the pee hole or telltale? <br />2. I assume that the water circulates thru the cooling jacket on the motor but I don't understand if the water expelled from these two outlets does different things (cools different parts of the motor?)and why there are two different outlets

 

[Xcusme]

Re: cooling system johnson 9.9

Cooling water is pushed to the power head by the water pump. The tell-tale is just a small line that is tapped into the power head to show that water is being pumped. Same water , same circuit. Usually a weak tell-tale indicates a weak pump. You may have a thermostat that controls power head temps too. With a thermostat, you may see more or less of a tell-tale stream as the thermostat opens and closes and can vary with RPMs, higher RPMs-more water pressure-stronger tell-tale.