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    Normal rust on 2011 Mercruiser?

    Thanks for the info. I pulled one of the plugs and got in there with the inspection camera. Clean inside as far as I could see. I’m just unsure what would cause that much corrosion on the outside of the head gasket without some sort of leak, either from the head itself or the cooling lines that...
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    Normal rust on 2011 Mercruiser?

    I have a new to me 2011 boat with 3.0L Mercruiser. The boat was in salt a few times and supposedly cleaned very well each time, mostly fresh water. Everything checked out on the boat but I was cleaning the flame arrestor and moved the cooling line between the head and manifold. Found some...
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