splashandburn

It does put antifreeze into the block though - after I did it I opened up the lower two plugs on the block and all I got was pink antifreeze. Even the exhaust drains were filled with pink.

If I let the motor run for a minute or so and antifreeze is being pulled in through the drive and it takes that long for it to start coming out the exhaust then where else could it be going?? There has to be some kind of bypass or something that allows it to go into the block otherwise within the first gallon or so of antifreeze being sucked in it woulod have to start coming out the exhaust wouldn't it? The fact that I have antifreeze coming out the block drain plugs means it has to be getting there.

bowtie

There is a bypass, otherwise when the thermostat is closed the engine would not get any water at all. That wouldn't make sense would it? If you look at the thermostat housing you can see where it bypasses the thermostat when it is closed. Believe me marinas have been winterizing big boats this way for years when they come out of the water in a travel lift and the antifreeze goes into the block.

the duke

I know that there is a bypass. I was trying to keep winterizing simple, and not get into the total makeup of the cooling system on a Merc motor

US1 Fountain

iTrader: (1)

The only drawback relying on the bypass route with the stat in the closed position to allow antifreeze to get into the block, is that it will take more antifreeze as a majority of it will take the path of least resistance.........straight out the exhaust.

the duke

CORRECT

If I was rssteiny who started this thread, I'd shoot myself now, and take it to the dealer

splashandburn

Sorry to have taken this thread in another direction - hope I didn't confuse the issue or make any of this sound to difficult because it really isn't that hard.

US1 Fountain

iTrader: (1)

OSO technical forum is the Rube Godberg advise line.


http://www.ebaumsworld.com/flash/honda-ad.html

ryker

I know this is an old thread - but I found it when I was doing my search.

This is my first winter with my boat. So I had my dad help me winterize it. Crownline boat 350mag with BravoOne drive and capt call.

I started boat with muffs and water hose. Let it reach about 160 on the dash gauge. I stopped because my dad said the water coming out was warm and I had a turkey in the smoker.. So we quickly hooked up the funnel and added one gallon of automotive pink and then two bottles of the $$$ boat store pink antifreeze. I stayed in the boat but my dad said that he did see some pink coming out of the bottom of the front part of the Bravo1 drive.

Is that enough or should I want pink coming out of the exhaust as well?

I only used about two gallons total. Is that enough? I live in south GA so we don't get that cold but I can't afford to repair a boat on a police salary.

I later pulled off the large hose on the tstat housing and didn't find any water or antifreeze in the hose or top of the housing.