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    Help! Overheating 3.0, not impeller or circulation pump

    on the top of the impeller housing are the black plastic oringed sleeve with a white plastic sleeve that's a guide for a plastic tube that transfers the water up the I/o to the transom , check that tube for a hole in it, ( it just pulls out). Also are you able to drain you manifold. Mine was...
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    Changing manifold on a 2004 3.0.

    on the manifold gasket supplied with the 860235011 Mercury Marine kit, the gasket doesn't fit the ports. if you don't cut out the gasket in the center, it will flap in the exhaust and remove itself weaking the gasket and eventually causing an exhaust leak. Also the manifold kit is missing a 3/4...
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    Changing manifold on a 2004 3.0.

    On a side note, I use West Marine in Tampa near Tyron Mall when I can if they have the part. when I tried on this site at checkout to discover shipping charges I received this error message: "An error has happened during application run. See exception log for details. Could not write error...
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    Changing manifold on a 2004 3.0.

    Sorry, the weight and shipping made the difference. Prime.
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    Changing manifold on a 2004 3.0.

    the gasket came with the manifold: https://www.amazon.com/dp/B002IQYGEU?psc=1&ref=ppx_yo2ov_dt_b_product_details
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    Changing manifold on a 2004 3.0.

    The drain line on my exhaust is plugged. I removed the manifold and have ordered a new one. The line I think is a bypass line that runs from the coldwater supply line coming through the transom from the impeller to the t is where the manifold drain is looks like it pumps cold water into the...
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    2004 3.0 Exhaust flapper question

    That was confusing me because mine had none to compare to and the same part number showed 2 different shapes. Thanks.
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    2004 3.0 Exhaust flapper question

    I'll go get it, I'm not at the boat, but if the same number shows both round and oval, to me that's a problem on what to order.
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    2004 3.0 Exhaust flapper question

    that's the one I ordered but when you google that number, it shows both oval and round for the same number, the one in hand is oval. the hole is round where the flapper sits, I tried to post pictures, the site reply said there was a problem the administrator would have to fix.
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    2004 3.0 Exhaust flapper question

    My hole where it sits is round, I ordered a 18-2727 or a 60923. the flapper with 60923 molded into it is oval, I need a round one, it shows both for the same number. is it needed?
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