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Old 13-12-2012, 08:23   #31
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Try using the sails and the diesel smell goes away.

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Old 13-12-2012, 08:59   #32
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Re: Boat partner's wife hates diesel smell

There are two diesel smells: the fuel itself (from leaks) and the exhaust, which can be both outside and inside the boat. Inside the boat means there is a leak in the exhaust, from sources like the exhaust manifold connection point, leaky hoses or connections. We replaced our 17 foot long exhaust hose from the muffler to the transom - it was pretty gnarly after 25 years! Our exhaust manifold has a flange that the exhaust hose is screwed into. Because of the geometry of the exhaust riser and the placement of the flange, the threads couldn't get bottomed out, so muffler pipe patch paste was needed after the nipple was tightened up. Lots of points of connection of the exhaust gases from the engine to the outside, so check your internal exhaust points, too.

Stu Jackson
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Cowichan Bay, BC, (Maple Bay Marina) SR/FK, M25, Rocna 10 (22#) (NZ model)
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Old 13-12-2012, 09:38   #33

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Re: Boat partner's wife hates diesel smell

As others have said, if she smells diesel there is diesel in the boat--where it shouldn't be. If you clean down the engine space and tank and make sure there are no leaks (a steam genny is probably the ideal way to do this) and there's still a smell, it can come from diesel that has soaked into unfinished plywood or other materials. It can be a b|tch to get out of them but that's necessary to get rid of the smell. Get rid of the mislocated fuel, and the smell will be gone.

That can mean detergent cleaning, solvent cleaning, painting and sealing with epoxy or urethane paint, and if you run an ozone generator on the heavy side for a while, that will also help burn any diesel fumes out of the boat. (There are pros and cons to ozone generators, but they do kill smells.)

You might also look into a couple of the Nicro solar vents for the boat, if you keep it constantly vented with fresh air, good things happen.
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Old 13-12-2012, 10:02   #34
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Re: Boat partner's wife hates diesel smell

Do you have any 5 gal jugs? Those always seem to smell a little.

After working on a diesel powered machine for 3 years, I don't like the smell of the exhaust. I'm not a huge fan of the smell of the fuel itself either though.

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