it does not have a waterpump!
For a comprehensive answer to this go to marinedoctor.com Ther is a section dealing with this specif question on a 70 hp johnson.
A Vintage Johnson 857171 outboard motor is from the year 1975. These small motors were designed for fresh water use on boats between 10 and 15 feet in length.
The 15 horsepower Mercury outboard motor does not have a water pump. The outboard motor is air cooled and does not have a need for circulating water.
does the lower unit need to be removed to replace the water pump on a 1995 Johnson 115 hp outboard engine
White
Welcome it is a indicator that your water is circulation water correctly
The impeller is located inside the water pump housing, on the topside of the gearcase. The gearcase will have to be removed in order to service it.
easy
try iboats.com
Depends where the water (ie coolant) intake is
Boat's exhaust systems are located on the middle unit of the Outboard motor, but some of the fumes get in the water.
Certain models of Johnson and Evinrude engines are not equipped with a tell tale water indicater outlet. These models discharge cooling water out the exhaust passages, and or the propeller.