2010 115 etec overheating

LoganHaas

Recruit
Joined
Jun 21, 2020
Messages
3
Have a 115 Etec Evinrude. Used to overheat whenever going into plane, getting speed. Changed full water pump kit, both T stats. Issue went away with 3 or 4 people max in boat, occasionally overheated at speed with 4, rarely. Thought problem was solved, took 7 people out, overheated whenever getting onto the plane, 30 secs into getting speed. At a loss of why.
 

jakedaawg

Rear Admiral
Joined
Jun 26, 2012
Messages
4,275
Vessel under powered? Too much prop? Incorrect trim adjustments? Incorrect height? Fishing graph Sounders located too close to lower unit? Improperly loaded vessel/poor weight distribution? The list could go on and on...
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,399
Does that motor have a poppit valve? Did you rebuild it?

Is the compressor overheating?
 

LoganHaas

Recruit
Joined
Jun 21, 2020
Messages
3
I think it may have something to do with the pressure relief valve spring being too stiff. Supposed to open at 21PSI but Evinrude came out with a improved one that opens at 19PSI.
 
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