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2002 F115 (200 hours) Making oil (STUCK OPEN THERMOSTAT?)

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pas_bon

Member
Well at the 200 hour mark I decided to check out a few things getting ready for summer activities, so I check the oil and yep it's VERY HIGH! first time I'v had this issue in the 12 or so years I've had the boat. So I pull the thermostat and sure enough STUCK OPEN.

Is it everyone's consensus that this will cause and engine to "Make Oil"?

Also should I replace it with a hotter thermostat? I believe there OEM is 50C and there may be a 60C option?
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Yeah... I have the same engine. Making oil seems most commonly associated with a failure of the mechanical fuel pump diaphram that you can easily replace. The thermostat has nothing to do with it. Ummm... As an old time outboard tech told me long ago... for craps and giggles, replace that thermostat every other year... thermostats are cheap, engines are expensive. Don't fry a $15K engine over a $25 thermostat!
 
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