Thermostat/Cooling Circulation |
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skfitz
Senior Member Joined: October-15-2009 Location: Herculaneum Status: Offline Points: 138 |
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Posted: September-22-2013 at 2:19am |
I believe this is an Escort marinization.
351W, 1975 Ski Nautique The thermostat is not in the intake manifold, like it would be in an automotive application. It's under the small dome (labeled in the pic). Raw water comes into the block-shaped piece beneath the thermostat dome and appears to go into the circulating pump. Then it goes thru the engine and comes out the intake manifold into the thermostat dome and out to the exhaust manifolds. QUESTION: Anyone familiar with this circulation/thermostat set up? If so, is there a direct port between the block (under the 'stat dome) and the hoses going out to the exhaust manifolds so that the manifolds are cooled even when the thermostat is closed? Thanks in advance! |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Shawn,
Water is always flowing out via the exhaust at the GPM rate of the RWP. The engine only bypasses what it needs when the T stat is calling. It's the basic principle of most of our marinized engines. |
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skfitz
Senior Member Joined: October-15-2009 Location: Herculaneum Status: Offline Points: 138 |
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Does that mean the answer to my question is "yes"? I really don't want to separate the two components of the thermostat junction to look for myself since the junction doesn't leak and a replacement gasket is unobtanium. |
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backfoot100
Platinum Member Joined: January-03-2007 Location: United States Status: Offline Points: 1897 |
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That is correct.
FYI, you can easily make your own gasket cut out from a sheet of gasket material that you can pick up about anywhere. |
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When people run down to the lake to see what's making that noise, you've succeeded.
Eddie |
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skfitz
Senior Member Joined: October-15-2009 Location: Herculaneum Status: Offline Points: 138 |
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Muchas gracias, fellas!
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