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Captain Starbucks
Joined: 20 Oct 2011
Posts: 109
City/Region: Tacoma
State or Province: WA
C-Dory Year: 2009
C-Dory Model: 255 Tomcat
Vessel Name: DOUBLE BARREL
Photos: Captain Starbucks
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 Posted: Thu Jul 17, 2025 9:21 am Post subject: |
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Hi John,
Yours are probably just missing but at the back of the boat just right above the water line are the 2 deck drains, one port, one starboard. There should be a very stiff plastic disc in there that is screwed to the deck drain assembly. Most likely, there is what's left of a small stainless fastener and no stiff plastic disk. Probably fell off. So I removed the tiny stainless fastener, drilled and tapped for 6/32, maybe 8/32 I can't remember, and installed this cool plastic disk I 3D printed. Works great.
_________________
Current boats
2009 C-Dory TomCat 255 Yamaha F150's
1992 Gregor 14' 25hp Merc 2 stroke
12' Lund with oars
16' Grumman Ultralight canoe (in the family since 1973. I wrecked it, The Colonel made me buy it).
17' Grumman expedition
Previous boats
2001 Shamrock Mackinaw 270 Sold 2022
2012 Ranger Tug 25 - Sold 2014
1996 20' Wooldridge Xtra Plus Sold 2012
old Glasspar Super G3 17' Merc 115 2st
old Pacific Mariner 15 Merc 65 2st
old 16' Glasply with inboard jet |
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Captain Starbucks
Joined: 20 Oct 2011
Posts: 109
City/Region: Tacoma
State or Province: WA
C-Dory Year: 2009
C-Dory Model: 255 Tomcat
Vessel Name: DOUBLE BARREL
Photos: Captain Starbucks
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| Posted: Fri Jul 25, 2025 4:09 pm Post subject: |
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| I should mention, if anyone has any interest in making these flappers for your boat or you want to become a self made millionaire and print and sell these, PM me your email and I'll send you the file for free (if you're a C-Brat with more than a day of association). |
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Captain Starbucks
Joined: 20 Oct 2011
Posts: 109
City/Region: Tacoma
State or Province: WA
C-Dory Year: 2009
C-Dory Model: 255 Tomcat
Vessel Name: DOUBLE BARREL
Photos: Captain Starbucks
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| Posted: Fri Aug 29, 2025 9:38 am Post subject: |
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| Captain Starbucks wrote: | I finally solved the problem with this 3D printed part I made.
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I finally had a chance to run my boat offshore last weekend in the open ocean and I can say with complete confidence this part works. No, it can't fix the poorly engineered design of only a 2" delta between the deck and drain port, but the flapper I've designed and made keeps water out, and easily drains the deck. |
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thataway
Joined: 02 Nov 2003
Posts: 21603
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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| Posted: Fri Aug 29, 2025 3:53 pm Post subject: |
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Sell these on line or to the factory, so they will be factory issue on all of the boats with scuppers.
_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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John S
Joined: 06 Jul 2006
Posts: 284
City/Region: Sterling
State or Province: AK
C-Dory Year: 2021
C-Dory Model: 255 Tomcat
Vessel Name: TomCat
Photos: TomCat
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| Posted: Fri Aug 29, 2025 4:01 pm Post subject: |
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My scuppers still back flood the back deck. We bought pool pipe plugs.🥴
I see no evidence where any flapper was ever previously installed in my boat.
Very curious if I have the same hardware as others.
I’ve posted some detailed photos to my photo album. Unfortunately, I’m using an iPhone and it is not as easy to view the source as it used to be on a laptop to attach an image to this post.
If you have a moment to check my album and tell me where this flap would go, that would be pretty awesome.
Thanks,
John
_________________
John
2021 TC255 Tomcat
Suzuki DF175
Previous:
2000 TomCat 24
BF90 Hondas
www.AlaskaAdventureJournal.com |
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Captain Starbucks
Joined: 20 Oct 2011
Posts: 109
City/Region: Tacoma
State or Province: WA
C-Dory Year: 2009
C-Dory Model: 255 Tomcat
Vessel Name: DOUBLE BARREL
Photos: Captain Starbucks
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| Posted: Fri Aug 29, 2025 4:22 pm Post subject: |
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| John S wrote: | My scuppers still back flood the back deck. We bought pool pipe plugs.🥴
I see no evidence where any flapper was ever previously installed in my boat.
Very curious if I have the same hardware as others.
I’ve posted some detailed photos to my photo album. Unfortunately, I’m using an iPhone and it is not as easy to view the source as it used to be on a laptop to attach an image to this post.
If you have a moment to check my album and tell me where this flap would go, that would be pretty awesome.
Thanks,
John |
John,
I looked in your album but didn't see the deck drain output on the outside of your boat. Please let me know if I missed it, I'm happy to help!
Anyway, on my boat, the deck drain goes through a deck fitting, interconnect hose that is very short, then to the through-hull fitting where this little flapper valve is screwed in. The 255's have a very stiff plastic flapper that doesn't work even when new My design discards the factory flapper and replaces it with a 3D printed hinge in the shape of a circle with a stainless pin through it.
Rob |
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John S
Joined: 06 Jul 2006
Posts: 284
City/Region: Sterling
State or Province: AK
C-Dory Year: 2021
C-Dory Model: 255 Tomcat
Vessel Name: TomCat
Photos: TomCat
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| Posted: Fri Aug 29, 2025 4:31 pm Post subject: |
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Thanks Rob!
The exterior drain outlet is in a sub-album “2021 Tomcat TC255”
It is the 4th photo, titled “Img 6750”
I am here with the boat now and can provide any other photos requested to determine if your fix would work for me.
If text is better, I can text photos too, 832-326-5572
Thanks again! |
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