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Join Date: Sep 2005
Location: New Westminster, BC
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Re: Diesel Fumes & Ventilation
Such smells can come from exhaust leaks, as indicated, from hot oil leaks, and from blowby or having the PCV hose disconnected from the air cleaner/intake. Older engines that still run well can suffer from blowby which can overload the 'suction' system intended for them and result in hot oil fumes within the cabin space.
We had a half season of exhaust smells where no apparent leak existed. Last fall I removed the exhaust elbow and, despite looking solid parts of it were virtually porous. A new SS assembly and we're smell free again.
I do like the idea of a blower in the compartment to remove excess heat as Treilley suggests.. newer Beneteaus have them that run anytime the engine is running. An off delay function would be better still.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)