Hot Manifolds
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tomschauer
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Re: Hot Manifolds
The riser gasket is also a good place to lose coolant into the raw water side of the system
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390Express
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Re: Hot Manifolds
tomschauer wrote:Qr Bbpost The riser gasket is also a good place to lose coolant into the raw water side of the system
Thanks for the tip, I forgot that the coolant side and the fresh water side mix at the riser, so the fresh water has a place to exit.
I like this color coded diagram by CP Performance:
http://www.cpperformance.com/t-marine-c ... stems.aspx
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mjk1040
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Re: Hot Manifolds
Closed cooling has to have the air bleed off to get the entire closed system full of 50/50 mixed antifreeze. One should fill as the engine is running and as the thermostat opens you should see coolant movement in the radiator cap. There may also be a bleeder valve in line to bleed the air out of the system!
Mike 
I'd Rather Be Boating!
1989 Sea Ray Seville
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I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow
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bud37
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Re: Hot Manifolds
390....Curious have you found the issue yet or is it all good now its full of coolant....... 
FWIW.....The above is just my opinion.
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390Express
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Re: Hot Manifolds
Well, was good for about 6-10 hours of running at perfect temp after I added coolant. Then, out of the blue, last weekend it puked a shitload of antifreeze out of the motor, but I don't know from where? See new thread.
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