[Public-list] Cowl vents

[Roger L Kingsland]

Hi Ed,

Relative to ventilation at the pointy end, good old #148 has a cut out in 
the bulkhead at the forward end of the V-berths (no door) which I always 
thought was to allow air from the cowl to circulate aft.  What I couldn't 
figure out is where any water from the cowl vent and wet rhode goes.  The 
bottom of the locker is below the top of the water tank and it looks like 
this wedge shaped volume will contain about a quart of water before it 
overflows onto the top of the water tank.  The tank is about an inch below 
the plywood bottom of the storage area under the bunks so who knows where 
the water goes once it reaches this cavity.

I ended up fiberglassing a plywood floor at the base of the locker a little 
above the plane of the V-berths.  At least this will contain the water 
before it has a chance to migrate to strange, mysterious places between tank 
and plywood.   It is above the water line so, if any water accumulating 
there doesn't evaporate in a reasonable time, I can drill holes through the 
hull at the aft, outside corners for drainage.

With the drain holes, one could add some clamshell vents at the top of the 
bulkhead and create a giant dorade box which could drain water from the cowl 
and/or the solar vent you mentioned.  If the smell is a problem, I suppose 
an internal dorade box could be installed at the upper aft side of the 
bulkhead with drainage into the locker.  This would require relocating the 
cowl.  Lastly, the overly ambitious messer about on boats could make an 
anchor locker by adding a wedge shaped deck hatch.

Roger

----- Original Message ----- 
From: "edward schroeder" <eddiediver at sbcglobal.net>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Sunday, August 06, 2006 1:48 PM
Subject: Re: [Public-list] Cowl vents


> Thank you all for the info and, yes, I will keep all informed about what I 
> decide. Since I wrote, I have considered that the vent enters the usually 
> smelly chain locker. However, we are in fresh water, use nylon rode that 
> is seldom used at all, and there is a thin piece of decorative plywood 
> between the chain locker and the V-berth which stops the flow of air thru 
> the boat. No place for a solar-powered vent under the water coming over 
> the bow; the cowl vent not really venting the rest of the boat. Still 
> investigating. Ed. Schroeder #303
>
> John Birch <Sunstone at cogeco.ca> wrote:  Hi Ed,
>
> The screw vents you are speaking of were made by Fico who have since 
> dropped
> the screw fitted type production line in favour of the inferior, in my
> opinion, snap on type. I can suggest two solutions 1) shop the used boat
> part chandleries for another one, Or 2) buy a new snap on, take off the 
> snap
> on base and have a bronze threaded male part manufactured at your local
> machine shop and affix it to the cowl.
>
> If you are successful finding an off the shelf screw in replacement, 
> please
> let us all know as I'm sure many of us might want to replace some with the
> like design.
>
> Best of luck.
>
> Cheers,
> John
>
> ----- Original Message ----- 
> From: "edward schroeder"
> To:
>
> Sent: Sunday, August 06, 2006 8:22 AM
> Subject: [Public-list] Cowl vents
>
>
>> Emotional Rescue #303 is used by Sail Chicago, a volunteer sailing group.
>> One of the activities is to take out under-priviiliged kids.
>> Unfortunately, one of the disturbed kids, unscrewed the bow cowl vent and
>> threw it overboard. I have looked thru West Marine catalog to try to
>> determine which of the many shown would fit. Those few in the store that 
>> I
>> can measure seem to have a slightly larger base that would require me to
>> enlarge the hole in the deckand epoxy seal the edges of the hole. It 
>> would
>> be very nic
>> e if I could find a replacement.
>>
>> Has anyone knowledge of what model cowl vent Whitby was using on the 1968
>> models?
>>
>> The base plate is cast bronze, chrome-plated, 4 screw holes. The inside
>> diameter of the threaded portion is 3-1/16 inches, the screw pitch is 
>> 1/16
>> inch (16 threads per inch). Any help would be appreciated.
>>
>> Ed, Schroeder
>> _______________________________________________
>> These businesses support your Association:
>> http://www.alberg30.org/store/A30supporters.html
>> Please support them.
>> _______________________________________________
>> Public-list mailing list
>> Public-list at alberg30.org
>> http://alberg30.org/mailman/listinfo/public-list
>
> _______________________________________________
> These businesses support your Association:
> http://www.alberg30.org/store/A30supporters.html
> Please support them.
> _______________________________________________
> Public-list mailing list
> Public-list at alberg30.org
> http://alberg30.org/mailman/listinfo/public-list
>
> _______________________________________________
> These businesses support your Association:
> http://www.alberg30.org/store/A30supporters.html
> Please support them.
> _______________________________________________
> Public-list mailing list
> Public-list at alberg30.org
> http://alberg30.org/mailman/listinfo/public-list
>
>
> 



 1154972615.0