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Reading the thread on engine room sound insulation I began to think about a problem I have separating the engine from the rest of the lazarette. My fear is that something stored might shake loose and get caught in the Yanmar. I'm interested in what solutions have been devised to partition the area under the cockpit and isolate the engine. Also there is some concern about the interior temperature of the engine area. After sailing Friday night in 88F weather there was a lot of heat built up in the engine area. Whatever solution I end up using I prefer not to compound that problem. Thanks
Mike M
SV Pura Vida
#375
Galveston Bay
Mike M
SV Wind Horse
#375
Galveston, Tx
Offline
I used to worry about that. I thought of fastening some of that orange polypropylene construction fence to the removable boards so that the pressure of lazarette junk would push the fencing tight against the cockpit sides. This little project got forestalled by circumstance and in the interim, I got everyone to be more careful in arranging the fenders in the locker. Subsequently, I found that the fenders never moved from where they were placed. Since it was the fenders and their lines that really concerned me, I ditched the whole idea (and found other things to worry about).
I asked our mechanic about heat buildup in the engine space. He said that these Yanmars are built to run in the tropics; their cooling systems are barely ticking over at our water temperatures. The huge demand for combustion-air with a diesel virtually ensures adequate air flow around the engine. If your engine is not getting enough air, it will quickly let you know by blowing black smoke rings at you. He did say that if I was ever concerned about the heat - because it would make the interior hot, for instance - it would be sufficient to run the blower for a short while.
David Weatherston
Towser, Toronto
C&C 27 Mk IV
Last edited by (2005-07-06 09:38:11)
David Weatherston
Towser, Toronto
C&C 27 Mk IV
Offline
It's those removable bits of ply I think I may be missing. Where do they fit (and were they a fixture on the MKII as well as on the MK IV).
I'll give the blower a try. After our sail, and 30 minute return under power, I opened the drain seacock for the sink and it was uncomfortably hot to the touch. I may just fit a divider between the area under the sink and the Yanmar. Thanks
Mike M
SV Pura Vida
#375
Galveston Bay
Mike M
SV Wind Horse
#375
Galveston, Tx
Offline
We have an interesting situation in our marina in Ft Myers. The Gulf temps in our area are at 90F ( Hurricane Dennis likes that a lot). We a re a mile downstream from a power plant whose discharge raises the ambient by 14F. Right now my little mk3 is sitting out there in 104F----so my cooling water "in" for my dandy little AC unit (which you guys probably don't want to hear about) (or the Honda2000 watt gen set that drives it while at anchor---silently) has got a real chore to do. With daily temps of 95F the cabin temps reach 125F (unvented)----the AC sucks it down to 85F+-.
Re heat from Yanmars: Yanmar, especially on the fresh water cooled models, does a super job of providing excess cooling capacity. I always install "real" guages in addition to the idiot lights. Some of our boats run in Lake Superior waters with temps of 40F-----and some here in Fl with the 100F stuff. With a 160F thermostat-----thats what you get. Its a good idea to let these guys idle a bit after running them hard----if not, you'll see a dramatic rise in temp's after shut down.Dave Tinder
DAWN BREAKER Mk3
Ft Myers
Mike,
You are welcome to pattern on mine - I have them all.
Warren Smith (AKA Tropical Warren)
Serendipity
Galveston Bay, Texas
Thanks Warren, I'll get with you in the next couple of weekends.
Mike M
SV Pura Vida
#375
Galveston Bay
Mike M
SV Wind Horse
#375
Galveston, Tx
Offline
I'm trying to relate to 104F water temps.....my hot tub in January is 100F. Yikes!
90 degree water feels pretty nice when the heat index is 105 or so. The "ex" tried to get me to move to her home town of Duluth but I could not get more than ankle deep in the lake. It is a nice place but my blood is just too thin. I guess it is all in what one is used to...
Mike M
SV Pura Vida
#375
Galveston Bay
Mike M
SV Wind Horse
#375
Galveston, Tx
Offline
As for cooling . . .
My $77 Waly-World window AC unit purrs away in the companionway at the dock and easily cools to 75F within an hour on the worst days, of course the water temp here is just now hitting 90F. The real secrete is the sun awning - that's good for 10-15 degrees for real!! We sail a lot at night, and usually return to the dock for the remainder. It is a little inconvenient - but for several thousand $$$ differenceI figure I can endure!
Dave, did you get the de-humidifier? I am really happy with mine - best $70 I have spent in a while.
Warren Smith (AKA Tropical Warren)
Serendipity
Galveston Bay, Texas
Warren---I did get the Wally World de-humid unit. Great item-----and sits nicely in the sink whilst sailing. Recent feedback tells me Wally is no longer stocking this little guy.Dave Tinder
DAWN BREAKER Mk3
Ft Myers
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