Quote:
Originally Posted by aussie
bellows wtf r they not a term i have herd of here i will google it now lol  |
The bellows is the rubber seal where the outdrive goes through the hull on an inboard/outboard (I/O) equiped boat. Since the lower part of the outdrive hole is always underwater it provides a seal between the outdrive and the transom and keeps water out of the boat. What happens is the rubber, like all rubber, eventually rots due to time, weather, sun, etc. (Just like the tires on a car). When that happens they leak and let water into the boat through the hole in the transom. (It's also one of the reasons that a lot of us tend to like outboard engines instead of I/O's. Outboards do not have this problem). Additionally, like RW said, it could also be a dead battery or a defective bilge pump along with a leaking bellows. You'll notice in the video that as the rescue boat was pulling up alongside the sinking boat there was no evidence of any water being pumped overboard, which tells me the bilge pump was not working for whatever the reason. Hope this answers your question. 
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer
1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer
1996 V21 w/1993 200HP Mercury on a Shoreline Trailer
All towed by a 5.7L Hemi Durango.
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