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Originally Posted by kchace
The exhaust bellows are not even required to run the boat. The exhaust is of course open on its far end but is sealed all the way back to the engine's cylinder heads. If water *did* come up there, it would ruin the engine, but not sink the boat. DaveR has it correct. There are no bellows on modern IO's which could create a large leak back into the boat even if they were all missing. The only exception to this was the 70's and earlier vintage OMC IO.
Ken
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Yep, my Bravo 3 doesn't even have an exhaust bellows.