Interesting. We have a full cockpit enclosure too, but it doesn't cover the two stern dorades (they're outside the enclosure) which I presume feed engine air pretty well (they're above where the old blower was). Our enclosure also is nowhere near air tight - lots of air comes in / leaves through the open corners and bottom edges. But diesels could consume a lot of air so with a really air tight enclosure also enclosing the dorades I could see the need for a blower.
On Mon, Dec 28, 2015 at 6:08 AM, Robert Boyer <dainyr...@icloud.com> wrote: > I have a full cockpit enclosure on s/v Rainy Days. When motoring with the > enclosure in place, the engine's intake air must come from within the > enclosure, reducing the oxygen content in the enclosure. I have a new > blower but the intake and exit are presently inside the enclosure. I have > to modify my enclosure so that its not this way. So, if you ever plan on > adding a full cockpit enclosure, you have to pay attention to where the > engine's intake air is coming from... > > Bob > > Bob Boyer > S/V Rainy Days / Annapolis MD > 1983 C&C Landfall 38 - Hull #230 > email: dainyr...@icloud.com <dainyr...@icloud.com> > blog: dainyrays.blogspot.com > > "There is nothing--absolutely nothing--half so much worth doing as simply > messing about in boats." --Kenneth Grahame > > On Dec 28, 2015, at 12:13 AM, Patrick Davin via CnC-List < > cnc-list@cnc-list.com> wrote: > > Since we were talking blowers last week, I wonder why C&C installed marine > blowers even on boats that didn't have gas engines? > > I just today removed the rusted out ignition-protected blower in the stern > of my boat, which looked original. It had been disabled a while ago by a > prior owner (had no hoses attached, and the electrical wires aren't live) > but never completely removed. > > > https://drive.google.com/file/d/0BxfHpwssU_6NdlFtMXJRRTdIZzg/view?usp=sharing > > West Marine has a page saying blowers are a must for gasoline, less so for > diesel but sometimes still advisable for air supply to the engine. But our > engine compartments are so huge and leaky (compared to many more modern > boat designs - like a Jeanneau with an insulated below-companionway-stairs > engine installation) that it seems quite unnecessary. Maybe that was the > thinking of the times in the 80's? > > -Patrick > 1984 C&C LF38 > Seattle, WA > > On Thu, Dec 24, 2015 at 8:27 AM, <cnc-list-requ...@cnc-list.com> wrote: > >> >> >> ---------- Forwarded message ---------- >> From: Nate Flesness <nateflesn...@gmail.com> >> To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com> >> Cc: >> Date: Wed, 23 Dec 2015 16:59:18 -0600 >> Subject: Re: Stus-List Proper Blower Installation - 30 mki >> My 1980 30-1 has two hoses connected to the stern vents. One hose is >> blower exhaust, the other runs forward to just aft of the engine and >> sits there - air intake. I turn the tops accordingly. Very likely this is >> original. The hose diameter fits tightly on the vent base, so 3" I.D.? >> >> Nate >> "Sarah Jean" >> Siskiwit Bay Marina >> Lake Superior >> > > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > >
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