brass low profile cowls?

Discussions about Cape Dory, Intrepid and Robinhood sailboats and how we use them. Got questions? Have answers? Provide them here.

Moderator: Jim Walsh

Post Reply
Jim Newton

brass low profile cowls?

Post by Jim Newton »

Any suggestions on where I can find the above. I plan to replace the ABS 3" cowl on the foredeck of my CD30 with a brass one from West Marine and would like to do the same for the engine vents. Has anyone else done this? Thanks, Jim



jnewt@oakeselectric.com
John R.

Clamshell / Butterfly

Post by John R. »

Jim Newton wrote: Any suggestions on where I can find the above. I plan to replace the ABS 3" cowl on the foredeck of my CD30 with a brass one from West Marine and would like to do the same for the engine vents. Has anyone else done this? Thanks, Jim
Jim,
I installed an ABI brass cowl vent on our CD30 dorade box about 9 years ago. It's height has not caused any problems with rigging. However if your heart is set on a lower profile cowl then try Woodenboat Magazine for some other suppliers such as Clark Metals and others. One of them may make a low profile vent.

If you can't find those vents then here is an option that I've used for the stern vents:

I replaced the cheap plastic stern cowl vents with stainless clam shells. I picked them up at West for around $18.00 a piece. Because the boat is in the hurricane belt I also installed closable stainless butterly vents inside the clamshell vents.

The butterfly vents are those round flat units that have a knurled knob in their center (Attwood - I think). By reaching into the clamshell vent with your fingers you can just turn the knob to either open or close the vent. In case of a bad storm all one needs to do is turn the knob to close the vent. A quick and effective way to quickly close stern vents in the event of bad weather.


If you decide to do it you will need to trim the edge of the butterfly vent to fit under the tapered clamshell body. After trimming be sure to file, sand and buff the edges to prevent any corossion or rusting of the stainless. Your old plastic (Nicro) deck plates will need to be modified. Disconnect the vent hose from the deck plates, then remove the deck plates and cut off the flanges. The core of the deck should have been sealed long ago but if not seal it now with West System. Next reinstall the tube section that is left of the deck plate by sealing in position with silicone and hold in position with 3 #6 screws. Attach the vent hose back onto the bottom of the tube. Now you have the flat deck without the flange so you can just finish up installing the butterfly vent and the clamshell vent.
Jerry J Commisso

Re: Clamshell / Butterfly

Post by Jerry J Commisso »

Hi John,
I am interested in getting the phone number or address for ABI and Clark metals if you have it.

Thanks
Jerry
CD30 CHELSEA ROSE



the ABS 3" cowl on the foredeck of my CD30 with a brass one from West Marine and would like to do the same for the engine vents. Has anyone else done this? Thanks, Jim
John R. wrote: Jim,
I installed an ABI brass cowl vent on our CD30 dorade box about 9 years ago. It's height has not caused any problems with rigging. However if your heart is set on a lower profile cowl then try Woodenboat Magazine for some other suppliers such as Clark Metals and others. One of them may make a low profile vent.

If you can't find those vents then here is an option that I've used for the stern vents:

I replaced the cheap plastic stern cowl vents with stainless clam shells. I picked them up at West for around $18.00 a piece. Because the boat is in the hurricane belt I also installed closable stainless butterly vents inside the clamshell vents.

The butterfly vents are those round flat units that have a knurled knob in their center (Attwood - I think). By reaching into the clamshell vent with your fingers you can just turn the knob to either open or close the vent. In case of a bad storm all one needs to do is turn the knob to close the vent. A quick and effective way to quickly close stern vents in the event of bad weather.


If you decide to do it you will need to trim the edge of the butterfly vent to fit under the tapered clamshell body. After trimming be sure to file, sand and buff the edges to prevent any corossion or rusting of the stainless. Your old plastic (Nicro) deck plates will need to be modified. Disconnect the vent hose from the deck plates, then remove the deck plates and cut off the flanges. The core of the deck should have been sealed long ago but if not seal it now with West System. Next reinstall the tube section that is left of the deck plate by sealing in position with silicone and hold in position with 3 #6 screws. Attach the vent hose back onto the bottom of the tube. Now you have the flat deck without the flange so you can just finish up installing the butterfly vent and the clamshell vent.


liasboat@aol.com
John R.

ABI

Post by John R. »

Jerry J Commisso wrote: Hi John,
I am interested in getting the phone number or address for ABI and Clark metals if you have it.

Thanks
Jerry
CD30 CHELSEA ROSE

Here's what I have Jerry:

ABI (A&B Industries)
1160A Industrial Ave.
Petaluma, Ca. 94952

PH:707/765-6200
FAX: 707/765-1716
E-mail: abi3@ix.netcom.com
Web: www.iwol.com

You will need to obtain a copy of Woodenboat magazine for the contact info of others like Clark. Below are a couple of other sources you might try.

New Found Metals
240 Airport Rd.
Pt. Townsend, Wa. 98368
PH: 360/385-3315
FAX: 360/385-6097


Rostand (not the same as Ronstan)
Box 737
335 Long Entry Rd.
Chepachet, Ri. 02841
PH:401/949-4268 or 800/635-0063
E-mail: carrollharrington@compuserve.com

the ABS 3" cowl on the foredeck of my CD30 with a brass one from West Marine and would like to do the same for the engine vents. Has anyone else done this? Thanks, Jim
Jerry J Commisso wrote:
John R. wrote: Jim,
I installed an ABI brass cowl vent on our CD30 dorade box about 9 years ago. It's height has not caused any problems with rigging. However if your heart is set on a lower profile cowl then try Woodenboat Magazine for some other suppliers such as Clark Metals and others. One of them may make a low profile vent.

If you can't find those vents then here is an option that I've used for the stern vents:

I replaced the cheap plastic stern cowl vents with stainless clam shells. I picked them up at West for around $18.00 a piece. Because the boat is in the hurricane belt I also installed closable stainless butterly vents inside the clamshell vents.

The butterfly vents are those round flat units that have a knurled knob in their center (Attwood - I think). By reaching into the clamshell vent with your fingers you can just turn the knob to either open or close the vent. In case of a bad storm all one needs to do is turn the knob to close the vent. A quick and effective way to quickly close stern vents in the event of bad weather.


If you decide to do it you will need to trim the edge of the butterfly vent to fit under the tapered clamshell body. After trimming be sure to file, sand and buff the edges to prevent any corossion or rusting of the stainless. Your old plastic (Nicro) deck plates will need to be modified. Disconnect the vent hose from the deck plates, then remove the deck plates and cut off the flanges. The core of the deck should have been sealed long ago but if not seal it now with West System. Next reinstall the tube section that is left of the deck plate by sealing in position with silicone and hold in position with 3 #6 screws. Attach the vent hose back onto the bottom of the tube. Now you have the flat deck without the flange so you can just finish up installing the butterfly vent and the clamshell vent.
Post Reply