1989 3.0l mercruiser leaking water/oil

[bryceefisher]

89 3.0l mercruiser is leaking water from under the exhaust manifold. I understand this has to be a crack right, no gaskets or seals can leak. Could this be the head gasket? The strange thing is that I changed the oil yesterday and its not milky but is now below the add line. Any Ideas? I will pull the exhaust manifold once it cools down. I attached a link to the best picture I could get.

Boat is new to me. I was told it was winterized last year.

https://goo.gl/photos/Hcwah4ptFr28EySL6

 

[bryceefisher]

I guess another question would be do these 2 problems together point to anything specific? Maybe the oil is leaking out with the water?

 

[kenny nunez]

If there is oil mixed in the cooling water you have an internal pin hole at the base of the engine on the starboard side. This is a rare occasion but is a known problem with the GM in line engines.

 

[bryceefisher]

If there is oil mixed in the cooling water you have an internal pin hole at the base of the engine on the starboard side. This is a rare occasion but is a known problem with the GM in line engines.

And I'm assuming that means the motor is toast?

 

[kenny nunez]

Burnt toast and no butter.

 

[Bt Doctur]

Depends on the crack, some have survived with plumbers epoxy putty but you wont know what you got untill you remove the manifold