First of all, sincere apologies for the cruel remarks about disposing of your wife, made by people who didn't even offer her a new home. To me that's pretty heartless, but you could make amends by
posting a recent photograph of her, and her
boating resume, to encourage more complete solutions and perhaps an upturn in her circumstances.
Before leaping to a
new boat, which may also have diesel smells, it would be useful to track down the nature and source of the diesel smell.
Is your darling wife being nauseated by the smell of diesel exhaust or raw diesel fuel
oil?
If it's diesel exhaust fumes, do you have a leak in your exhaust system or are the fumes blowing back over the transom when the apparent wind is from astern? Be aware that if it's the latter, you must add an anti-siphonage valve to the exhaust system before lowering the discharge point below the waterline, which is generally a bad idea. It may help to extend the discharge pipe away astern of the boat, or add a deflector to the
bimini or transom to prevent the "station wagon' effect
If it's raw
oil, there are two possibilities, either you have a leak in the fuel system, which you can
repair, or the fumes from the tank vent are blowing back into the boat. You may be able to move the vent to the transom if it's not already there, and add an activated charcoal+silica gel filter to the vent hose, which will capture the fumes.
I hope this helps, please feel free to contact me direct(jmardall@comcast.net) if you need details, discussion or marriage counselling.
All the best
John Mardall
Vetus
Maxwell Boat
Equipment and Psychiatric Services.