Evinrude E-NATION, for those dedicated to water, power, fishing and fun
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Skipper
Posts: 6
Registered: ‎05-29-2013

thermostat opening

I have a etec 115 (2009) and I am having a overheat situation when I'm at low speed loaded up. (under load) I replaced  the water pump but that did nothing. I have the termostats out and am waiting for new ones to arive but am wondering when do they open up. I thought I would play around with a pan of hot water and see if they are working properly. Do you know the temp. they are supposed to open up at? When I gun the engine the temp lowers right away and everything is fine. (pop outs are working correctly I assume)

 

Please let me know,

Matt

Admiral
Posts: 6,731
Registered: ‎07-14-2011

Re: thermostat opening

Thermostats start to open about 125° and are fully open around 145°

 

Did you replace just the impeller or the whole factory water pump kit?

 

The most accurate way to troubleshoot an overheating problem is to temporarily connect a water pressure gauge to the motor and run at all speeds. Compare your readings to the factory published specs for rpm and water pressure.

 

See your dealer to be sure that the motor has the latest software in it.

 

 

 


"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.


Skipper
Posts: 6
Registered: ‎05-29-2013

Re: thermostat opening

Thanks for getting back to me. Yes I replaced the whole water pump...(I bought the kit) I'm hoping since I see some salt damage to the t stat that they just were not opening fast enough or far enough. I'll find out soon. If tha doesn't fix it its off to the dealer.

 

Matt

Admiral
Posts: 6,731
Registered: ‎07-14-2011

Re: thermostat opening

There is a lower pressure relief valve spring kit that may help if everything else checks out OK

 

 

 


"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.