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In water all winter
My son bought an old small house boat that he has to store in the water in Boston Harbor all winter. It has a merc I/O. I know outboards but not I/Os. How do you winterize an I/O that will stay in water all winter? Engine does not run. He is planning on getting it running and restored to live on next summer.
Thanks. 
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#2
10-16-2009, 04:35 PM
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do you have shore power on the boat? Is the engine closed cooled?
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#3
10-17-2009, 10:08 AM
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if it doesn't run all you can really do is drain the water from the block and manifolds. Then fill them as best you can with non toxic antifreeze. If you can leave a droplight on in the engine compartment. the lightbulb will provide enough heat to keep things from freezing in case you missed any water in the block.
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