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Gas and water cap seals

 
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Spiralinguist



Joined: 12 Aug 2021
Posts: 9

State or Province: NY
C-Dory Year: 1992
C-Dory Model: 22 Cruiser
Vessel Name: Thug Tug
Photos: Thug Tug
PostPosted: Sat Aug 14, 2021 3:32 pm    Post subject: Gas and water cap seals Reply with quote

I have a 1992 22’ C Dory. I’ve measured the seals at 1.5” and when I ordered 1.5” replacements, they are too big. Does anyone have a site or place where they have found new seals that fit? The gas seals are overdue for replacement and the water seal is completely absent.
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George and
The Thug Tug
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LesR



Joined: 05 May 2010
Posts: 162
City/Region: St. Louis
State or Province: MO
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: Intuition
Photos: Intuition
PostPosted: Sat Aug 14, 2021 4:13 pm    Post subject: Reply with quote

I ordered these from Defender, which fit the gas and water caps on my 25. You may be able to find one that fits at your local hardware store.

https://www.defender.com/product.jsp?id=2034674#

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Les and Kel Rohlf
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thataway



Joined: 02 Nov 2003
Posts: 20803
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Sat Aug 14, 2021 4:26 pm    Post subject: Reply with quote

Any hardware store should have these "O" rings. Best to take the old one with you. It is not only the diameter of the ring as it fits into the cap, , but of the cross section of the actual "O" ring--ie 1/8"

Best to get nitrile composition. I like to keep them dressed with a small amount of silicone grease.

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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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SeaSpray



Joined: 12 Mar 2004
Posts: 1007
City/Region: Brentwood, CA
State or Province: CA
C-Dory Year: 2004
C-Dory Model: 22 Cruiser
Vessel Name: SeaSpray
Photos: SeaSpray
PostPosted: Sun Aug 15, 2021 2:21 am    Post subject: Reply with quote

I ordered these.

https://www.amazon.com/gp/product/B000FMUVBG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Steve
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localboy



Joined: 30 Sep 2006
Posts: 4656
City/Region: Lake Stevens via Honolulu
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: 'Au Kai (Ocean Traveler)
Photos: 'AU KAI
PostPosted: Sun Aug 15, 2021 4:07 pm    Post subject: Reply with quote


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"We can go over there...behind the 'little one'....."
Wife to her husband pointing @ us...from the bow of their 50-footer; Prideaux Haven 2013
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localboy



Joined: 30 Sep 2006
Posts: 4656
City/Region: Lake Stevens via Honolulu
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: 'Au Kai (Ocean Traveler)
Photos: 'AU KAI
PostPosted: Sun Aug 15, 2021 4:40 pm    Post subject: Reply with quote

Large ones: https://www.theoringstore.com/store/index.php?main_page=product_info&cPath=367_23_25&products_id=1208

Buy 10 for less than one from any marine supply I could find. One place wanted $12 for one o-ring.

Small ones are Danco #50. I found them at Ace. Danco supplies plumbing products.

http://www.c-brats.com/modules.php?set_albumName=album3086&op=modload&name=gallery&file=index&include=view_album.php
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ssobol



Joined: 27 Oct 2012
Posts: 3370
City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
PostPosted: Sun Aug 15, 2021 6:58 pm    Post subject: Reply with quote

localboy wrote:
Large ones: https://www.theoringstore.com/store/index.php?main_page=product_info&cPath=367_23_25&products_id=1208

Buy 10 for less than one from any marine supply I could find. One place wanted $12 for one o-ring.

Small ones are Danco #50. I found them at Ace. Danco supplies plumbing products.

http://www.c-brats.com/modules.php?set_albumName=album3086&op=modload&name=gallery&file=index&include=view_album.php


if the Danco ones are for plumbing, are they suitable for exposure to gasoline? Wouldn't want the O-rings to turn to goo.
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localboy



Joined: 30 Sep 2006
Posts: 4656
City/Region: Lake Stevens via Honolulu
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: 'Au Kai (Ocean Traveler)
Photos: 'AU KAI
PostPosted: Sun Aug 15, 2021 7:08 pm    Post subject: Reply with quote

ssobol wrote:
if the Danco ones are for plumbing, are they suitable for exposure to gasoline? Wouldn't want the O-rings to turn to goo.


The small ones on our boat are water and waste only.
The larger ones I ordered are for gas. From their website:

Quote:
Buna-N / Nitrile Recommended uses:

General purpose sealing.
Petroleum oils and fluids.
Gasoline
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