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Thermostat - Negative Pressure Fill?


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Yes its a winterization question, but more specific to a pink stuff fill. Everything I read after researching led me to understand that once the entire system is drained, negative pressure would cause for the entire system to feed the antifreeze without having to be at 160+ temp. 

I drained J Hose, Heater hoses blown out an filled with pink, block plugs, both hoses on the water pump, quick connect for manifolds, and the v drive cooler. 

I took a 1 1/4 hose to pump the pink stuff directly into the system. I was only 1.5-2 gallons in before I was getting it out the exhaust and dripless seal. Didnt feel like there was nearly enough to fill through the system.

There a certain place for me to check that would still be dry if it didnt make it all the way through? 

Should I really worry if I drained all the water out the system anyways? 

 

Will be dry storage (non insluated), located in Kentucky next to the ohio river. Only a few really cold spells come through, but wanting to make sure for rust as well. 

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Mine takes 2 gallons, pouring it in thru the top of the J hose.  I pour it in thru the top into the J hose until antifreeze comes out from the thermostat housing, from where I disconnected the J hose.  So you're good.

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On 10/2/2020 at 8:41 AM, Michigan boarder said:

Mine takes 2 gallons, pouring it in thru the top of the J hose.  I pour it in thru the top into the J hose until antifreeze comes out from the thermostat housing, from where I disconnected the J hose.  So you're good.

Thanks Michigan! Figured it would take longer to start coming out the pipes when it was dry, but seeming it was drained first ill sleep comfortably. Used -100 too this year for extra precautions :)

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23 minutes ago, BlacknBu said:

Thanks Michigan! Figured it would take longer to start coming out the pipes when it was dry, but seeming it was drained first ill sleep comfortably. Used -100 too this year for extra precautions :)

Or don't run any.  Indmar doesn't call for antifreeze as part of their process to winterize the motor...

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1 hour ago, Nitrousbird said:

Or don't run any.  Indmar doesn't call for antifreeze as part of their process to winterize the motor...

It prevents corrosion.  Which begs the question "so what happens with corrosion when your boat is in use from May thru Sep?"  It corrodes, nothing I can do about that.  But for $8 or whatever it is, I like the no-corrosion peace of mind in the off season.

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On 10/4/2020 at 10:33 AM, footndale said:

Just a reminder.

 

Great reminder and glad to see product working as designed. I used -100 and make sure the system is fully drained. I also ran 6 gallons through. 

Boat will be located in dry storage and we rarely see the temps Maine does. Knowing there is insulation from the boat and motor vs a plastic bottle sitting outside,The cold isn't a fear as much as corrosion for the process. 

 

 

 

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