over heating coolant in exhuast water

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Sep 14, 2012
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Catalina 30 tall rig Charleston
I have a universal diesel in my Catalina 30. Yesterday the raw water intake was blocked and the motor ran hot before I realized what was going on. I cleared the barnacle and water started flowing normally through the system. The engine is still over heating and I saw coolant spit out the back of the exhaust. I'm guessing I caused a coolant leak somewhere? does anyone know why the boat would do that and what I should do about it?
 
Stu Jackson

Stu Jackson

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Feb 26, 2004
23,101
Catalina 34 224 Maple Bay, BC, Canada
If coolant has mixed with the raw water, the first thing to check is the HX.

Is the engine an M25?
 
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nolasafari

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Jul 19, 2013
186
Hunter 33 New Orleans
Stu Jackson said:
If coolant has mixed with the raw water, the first thing to check is the HX.

Is the engine an M25?
Click to expand
How is the Power? Blown head gasket probaly not, but check the oil to be sure no coolant or water is mixed in.
Jim
 
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