Winterizing a 2008 340 Indmar

[Stazi]

You should be good to gonif you got the antifreeze to come out the exhaust after all what you did. I just did my Raptor yesterday and it's even easier with the closed loop cooling system


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[MJHSupra]

You should be good to gonif you got the antifreeze to come out the exhaust after all what you did. I just did my Raptor yesterday and it's even easier with the closed loop cooling system


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Don’t you have a fitting in the new motors to attach a hose?


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[Stazi]

Not that I saw anywhere.


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[MJHSupra]

Not that I saw anywhere.


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I think I was looking at the Facebook page and someone who put the Indmar sea strainer/flush kit on.

https://www.bakesonline.com/indmar-s...lush-kit.html/


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[DOCDRS]

I've always ran the boat to temp and then run antifreeze through until it comes out the exhaust. That way I knew antifreeze was everywhere. Just dumping the manifold and drains doesn't get all the water out.


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Dont do this, at temp the thermostat just begins to open. Most of the antifreeze will bypass the engine and go to the exhaust and out the muffler.
If you drain your block then hook up the intake to antifreeze it will fill the block thru the j tube after any water left from the intake ,pre and post impeller hoses and bottom of the jtube have entered the block and diluted the antifreeze. Once the block is filled remaining antifreeze will mix with water left in the exhaust manifolds if they were not drained , then out to mix with any water in the muffler if it was not drained. This is for open cooling systems
I like to drain (shopvac) eveything ( block,heater,pre and post impeller hoses, vdrive , and shopvac out the jtube ( easier to remove top housing hose end than circ pump end ) before sucking up plumbing antifreeze. The antifreeze is overkill but it only takes a few more minutes.

[Stazi]

Dont do this, at temp the thermostat just begins to open. Most of the antifreeze will bypass the engine and go to the exhaust and out the muffler.
If you drain your block then hook up the intake to antifreeze it will fill the block thru the j tube after any water left from the intake ,pre and post impeller hoses and bottom of the jtube have entered the block and diluted the antifreeze. Once the block is filled remaining antifreeze will mix with water left in the exhaust manifolds if they were not drained , then out to mix with any water in the muffler if it was not drained. This is for open cooling systems
I like to drain (shopvac) eveything ( block,heater,pre and post impeller hoses, vdrive , and shopvac out the jtube ( easier to remove top housing hose end than circ pump end ) before sucking up plumbing antifreeze. The antifreeze is overkill but it only takes a few more minutes.

I forgot to say that I DID always drain the water before running antifreeze through the engine


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[DOCDRS]

I forgot to say that I DID always drain the water before running antifreeze through the engine


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Sorry, but was not sure why you would run your boat to temperature before hand......glad you drain before though...... I always hate hearing about cracked manifolds, blocks or heaters in the spring.

[JHutch]

So DOC your saying that even with the thermostat closed antifreeze will go in the block?

[Zim]

Just winterized today and made a video. I don't use anti-freeze, never have. I'm in Kansas City, and we see single digit temps and below freezing consistently.

https://youtu.be/TKCIjKWyiPA

[Stazi]

Just winterized today and made a video. I don't use anti-freeze, never have. I'm in Kansas City, and we see single digit temps and below freezing consistently.

https://youtu.be/TKCIjKWyiPA

I wouldn't make that gamble.


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