I have owned this engine for 3 years and never had any issues with it.. always starts on the first or second turn of the key. It has approximately 400 hours currently.
The last two times I have been out I got the overheat alarm and the engine reduced RPMs by design. The first time it overheated, I was running at higher RPMs than normal so I didnt think much of it. The second time, I was running at 4300-4400, which tends to be my normal RPM when wanting to move quickly. I was running at 4400 for approxaimately 5-6 minutes before it overheated,,, I gave it a few minutes by turning it off and the alarm had cleared. I travelled the rest of the distance at 4000 RPM and it was fine.
I have the digital gauge and it showed that it was temp as the problem.
I decided to check the thermostats... When I removed them, they looked like they werent in great shape but I cant be sure what that means in terms of age. I did not bring them in and put them in boiling water as the test.
I thought I might try putting the rabbit ears on the motor to see if I get water coming out the openings where the termos go, but when I turned the water on I did not get any coming out of the block... so I decided to fire the engine up in that condition. No water was coming out of the openings when I had the engine running either, they were running for 1-2 minutes.
Shouldnt I see water there when the motor is running ?
My **** valve on the motor always has a strong flow out of it, whether idling/running in the water and when idling on the hose.
This motor only is run in saltwater and has all its life.
Ultimately I replaced both thermos and removed the poppet valve to check it out. The tech at the shop said to just verify that it wasnt melted, it was in perfect shape.
I udnerstand all indicators may point to an impeller, however if I have strong flow from the **** valve yet no flow into the block...????
Any informed input would be most appreciated.
Thanks,
Keith
The last two times I have been out I got the overheat alarm and the engine reduced RPMs by design. The first time it overheated, I was running at higher RPMs than normal so I didnt think much of it. The second time, I was running at 4300-4400, which tends to be my normal RPM when wanting to move quickly. I was running at 4400 for approxaimately 5-6 minutes before it overheated,,, I gave it a few minutes by turning it off and the alarm had cleared. I travelled the rest of the distance at 4000 RPM and it was fine.
I have the digital gauge and it showed that it was temp as the problem.
I decided to check the thermostats... When I removed them, they looked like they werent in great shape but I cant be sure what that means in terms of age. I did not bring them in and put them in boiling water as the test.
I thought I might try putting the rabbit ears on the motor to see if I get water coming out the openings where the termos go, but when I turned the water on I did not get any coming out of the block... so I decided to fire the engine up in that condition. No water was coming out of the openings when I had the engine running either, they were running for 1-2 minutes.
Shouldnt I see water there when the motor is running ?
My **** valve on the motor always has a strong flow out of it, whether idling/running in the water and when idling on the hose.
This motor only is run in saltwater and has all its life.
Ultimately I replaced both thermos and removed the poppet valve to check it out. The tech at the shop said to just verify that it wasnt melted, it was in perfect shape.
I udnerstand all indicators may point to an impeller, however if I have strong flow from the **** valve yet no flow into the block...????
Any informed input would be most appreciated.
Thanks,
Keith
