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    Help plz, 2002 3.0 mercruiser winterizing question

    Its unique and I like it.
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    Fluid Changes for Winterizing, Do I Need to?

    I wouldnt sweat it, especially if you are not going out to sea and not running WOT all day long; some of the "annual must change" rules only apply for sea going vessels. For example, you MUST replace your impeller every season. Not True. I have experienced several summers of very limited use...
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    Air Don't Freeze Winterization

    Is there no hypothetical corrosion protection from having block full of AF? Or your view is an empty block corrodes less and the whole Anti-Freeze ball game is just a cash cow for the marinas scaring folks out of their $200 when the marina could pull your plugs for fraction of the cost?
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    Air Don't Freeze Winterization

    I only recently discovered this philosophy of winterization. Are any of you draining out all water and putting nothing (anti freeze) back in? if so, do you leave drain pugs out or not?
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    changing exhaust flappers on land or sea

    Thanks for that input, good to know. Just being cautious because those are likely 24 yr old flappers that now have now seen some extra heat and I have put zero minutes on the boat since the overheat. So basically its a trust issue, which I have in many areas of my life :) LOL Plan is likely to...
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    changing exhaust flappers on land or sea

    Hi Scott: you and Bondo have wisely advised me many times. What is the bigger risk A or B? A) change flapper at dock as a newbie who has never done it with aforementioned 1" clearance above water line B) pull/drive boat out onto trailer on ramp at lake marina, which in my experience tilts...
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    changing exhaust flappers on land or sea

    This may be a silly question, but, can I replace my exhaust flappers (aka shutters) with the boat in the water? Or must it be done out of the water? I presume the answer is it depends if they are above or below the water line? I didnt have a tape measure, but I estimated, mine are 1" above...
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    7.4L Overheating

    Sorry for the confusion Alldodge, I was referring to the potentially twisted hose MerCruiser Hose Kit 32-8M0090859 which Bondo said was outside the boat on the drive unit. This is why I asked if it can be replaced without changing the bellows
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    7.4L Overheating

    Can this hose be replaced without replacing bellows?
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    Sea water pump intake shutoff valve

    Thanks Bondo, good to know. One reads on these forums it could have fallen closed but no one ever clarified it was strictly aftermarket.
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    Sea water pump intake shutoff valve

    Can someone share a picture or diagram of what these look like and where they are located on a Mercruiser, preferably 7.4L? Does anyone know if a 1997 7.4LX MPI w/ Bravo 3 has this shutoff valve? If so, where is it? I presume it would be located on either the transom end or the pump end of...
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    Time it takes to prime cooling system?

    After a long winter, we put our boats in each spring and the outdrives and intake hoses are empty etc. The sea water pump is also empty if you have replaced the impeller. In my case its a 7.4LX MPI 1997. And I am testing for a potential bad sea water pump. How long does it take for the raw...
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    7.4L Overheating

    No water reaching oil/steering cooler. :( Woulda been nice if I could have just plugged in a new cooler to solve the problem.
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    7.4L Overheating

    Stupid question from me. The potentially twisted hose under the bell house & gimbal is in the lake or in the boat? Do you have diagram? Thanks!
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    7.4L Overheating

    My engine serial# is OK151148 It is only 1 line IN and 3 lines OUT of the thermostat??
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    7.4L Overheating

    Yes, understood this eliminates another variable and I can remove it easily but will need to take it home to backwash it. I still feel like the problem is somewhere in the transom. I do appreciate your guidance. So I can just break the hose from bottom of the cooler and see if water makes it...
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    7.4L Overheating

    Thanks for the diagram! How would oil cooler plug up over the winter? There were no observed tempearture issues for 6 years. I changed impeller for 3 rd time and pulled bilge pump out from under block. I think the bilge pump hitting or crushing something near the starter is more likely than...
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    Repeated impeller failures, help

    Would have a diagram of the intake hose connecting to the bell housing? I too am overheating a 7,4L and cannot find or see where it connects at transom. Mine is gen VI 1997 7.4LX MPI
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    7.4L Overheating

    entire new pump kit did not help. by removing the c shaped hose on the water pump, is this a valid way to test sea water pump? how long should it take for water to get picked up and pumped out these holes?
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    7.4L Overheating

    There was no leak I saw of. Is the hose under the bell housing and gimbal the intake hose?
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