Yanmar 3YM30 AE

[Goyo]

I have recently upgraded my boat and I have a question about winteriIng the motor . The new boat is powered by a Yanmar 3YM 30 (2015 model) with closed cooling system where my previos boat had direct raw water cooling . From what I have read winterizing the engine is as simple as removing the raw water intake and running a couple of gallons of the the pink stuff to flush the raw water / heat exchanger and water lift muffler .
I checked the antifreeze side of the state and it is coming in at -45 deg F.


Appreciate the feedback want to make sure I have completed the winterizing of the water cooling correctly .

 

[ice breaker]

YEP you are right. Block is already protected.

 

[Ralph Johnstone]

From what I have read winterizing the engine is as simple as removing the raw water intake and running a couple of gallons of the the pink stuff to flush the raw water / heat exchanger and water lift muffler .

That's the one to make sure it's full of AF. Your good to go. Or not go, as is the case.

 

[Goyo]

Thanks for the reply, looks like I am good for the winter