Evinrude E-NATION, for those dedicated to water, power, fishing and fun
Posts: 1
Registered: ‎03-19-2017

2010 25hp cooling system

I changed my impeller and when I started my motor I had no water comming out out of the tell tale. I took the lower unit apart to find my impeller iin pieces so I reinstalled the old unit and once again had no water comming out. I am under the assumption that my cooling system is plugged up is there anyway to check this? It is a fresh water motor. I tried bowing air through the flush port and it is not letting me. does anyone have any suggestions?


Posts: 8,636
Registered: ‎07-14-2011

Re: 2010 25hp cooling system



You have us concerned when you said you installed a new impeller and it immediately broke into pieces. Something must have been installed wrong or the motor was run dry, such as using a flush muff and not taping off the bleed holes under the anti-ventilation plate.


Was the impeller melted looking? If so, you need a whole water pump kit and also you may have to remove the powerhead to check for melted exhaust parts, charred gaskets, and for any rubber bits that may have lodged in the passageways.


Please obtain the correct factory service manual to guide you.




"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 



The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.