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Ask K. Kergan Your Own Question
K. Kergan
K. Kergan, Marine Mechanic
Category: Boat
Satisfied Customers: 1030
Experience:  24 yrs exp. Inboard/Outboard mechanic Mercury/ Mercruiser, Volvo Penta and OMC, Johnson/Evin.
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I have an AQ131. I put water in the heat exchanger and it

Customer Question

I have an AQ131. I put water in the heat exchanger and it come out below the exhaust manifold. Engine overheated, I think burned a gasket, but why would water come out exhaust manifold?
Submitted: 1 year ago.
Category: Boat
Expert:  K. Kergan replied 1 year ago.
Interesting, have you checked the sea water pump?
Expert:  K. Kergan replied 1 year ago.
If I remember correctly, there is a copper pipe that connects to the exhaust manifold, it has a rubber seal on it that may have been damaged by an overheat.
Remove the two bolts that hold it in place and check the rubber seal.
Let me know what you come up with.
Customer: replied 1 year ago.
Neither answer is satisfying. Not leaking from a copper pipe. I sent photo showing leak location. Sea water pump is not leaking and not even running. It is on the other side and nothing to do with the leak on the side of the engine block.
Expert:  K. Kergan replied 1 year ago.
I don't know if you have a cracked block, popped out frost plug, what you have?
I have not seen a photo of the leak location,
could you re-post it please?
Expert:  K. Kergan replied 1 year ago.
https://www.marinepartseurope.com/en/volvo-penta-cat-7744650.aspx
You're on your own, check out the website.

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