I recently purchased a new boat and after taking it out for the first time i noticed that the temperature gauge shows about 100F even after the engine ran for a while.
I did some troubleshooting by running the boat on the ear muffs and after 10 min of idle the temp gauge moved slightly above 100F. So then I turned the water down and i noticed the temperature increasing a little bit. I shut the engine of before temp reached 110-120F not to damage anything.
That test makes me think that this is a faulty thermostat (stuck open
) however I'm not 100% sure. Is there any other way to tell what the issue is? Is there a way to check the engine temp sending unit? (I'm assuming its the thing screwed into the thermostat housing with one wire coming out of it). I unplugged that wire and turned the key into on position put the gauge still showed 100F.
Thanks
Thomas
I did some troubleshooting by running the boat on the ear muffs and after 10 min of idle the temp gauge moved slightly above 100F. So then I turned the water down and i noticed the temperature increasing a little bit. I shut the engine of before temp reached 110-120F not to damage anything.
That test makes me think that this is a faulty thermostat (stuck open
) however I'm not 100% sure. Is there any other way to tell what the issue is? Is there a way to check the engine temp sending unit? (I'm assuming its the thing screwed into the thermostat housing with one wire coming out of it). I unplugged that wire and turned the key into on position put the gauge still showed 100F. Thanks
Thomas
