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cjcarman
Joined: 16 Jan 2017 Posts: 9 City/Region: Alaska
State or Province: AK
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Posted: Mon Jul 30, 2018 1:17 pm Post subject: Tomcat fuel system |
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We just bought a Tomcat and love the boat but we get a strong gas smell in the cabin after refueling and in rough seas with over 3/4 full tank. Any suggestions?
Thank you,
CJ Carman |
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Pacificcoast101
Joined: 29 Sep 2007 Posts: 718 City/Region: Torrance
State or Province: CA
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
Vessel Name: No Pressure
Photos: No Pressure
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BrentB
Joined: 15 Jul 2006 Posts: 4419 City/Region: Greenwood
State or Province: IN
Photos: BrentB
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Posted: Mon Jul 30, 2018 2:49 pm Post subject: |
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I assume all hoses are tight and fuel fill cap is tight, too?
Same for fuel sender on tank and hoses to motors? _________________ Brent Barrett |
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cmetzenberg
Joined: 04 Jan 2014 Posts: 367 City/Region: Santa Barbara
State or Province: CA
C-Dory Year: 2007
C-Dory Model: 255 Tomcat
Vessel Name: Kanaloa
Photos: Kanaloa
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Posted: Mon Jul 30, 2018 3:06 pm Post subject: |
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I've never had this happen on mine. I'm curious on the integrity of your fill and vent hoses to you tanks. When you're fueling close all your doors and windows to ensure no vapors are drifting in. _________________ Conrad Metzenberg
07' Tomcat 255 "Kanaloa"
87' Boston Whaler Guardian 17 (BlackFlag, 03-14)
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thataway
Joined: 02 Nov 2003 Posts: 20875 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: Mon Jul 30, 2018 7:47 pm Post subject: |
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Check the fuel tank sender units on the tops of the tanks., as well as all of the hoses as suggested above. The clam shells over the vents are a very good idea, since we had water from rain or splash, due to the position of the ports on the vent fittings locations. The Clam shells solved that issue. _________________ 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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gulfcoast john
Joined: 14 Dec 2012 Posts: 992 City/Region: PENSACOLA
State or Province: FL
C-Dory Year: 2010
C-Dory Model: 255 Tomcat
Vessel Name: Cat O' Mine
Photos: CAT O' MINE
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Posted: Mon Jul 30, 2018 7:54 pm Post subject: |
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CJ,
Only happens with us when we over-fill the tanks. Gauges are primitive rheostats. Use a strong light or thin wooden dowel to dip and make sure your actual gas level isn't inches under the fill deck plate (in our case) rather than down in the tank. (Agree with Bob that the sensor gauge cheap washer is always a suspect Leak Point). Once actual liquid gas comes surging out the vents (not just vapor) in the slop it can end up in the cockpit at cruise depending on wind and waves. Clamshells are on The List.
Always close the aft door above idle to prevent station-wagon effect of both engine and gas vent fumes. Refueling on the trailer the bow will be (or should be) a bit higher than refueling in the water.; check where your tank gauge sensor is loca ted and take that into account. Lastly, all the gas hose manufacturers advise replacing all gas hoses at 10 years from mfg date (stamped on hose), perhaps MUCH sooner if prior owner used ethanol, which 2006 era gas hoses were never engineered to tolerate (the first ethanol issues were reported to USBOAT IN 2006).
I know you guys need to max out the gas load, but if you don't I bet your issues will be resolved.
It's a great boat, enjoy!
John _________________ John and Eileen Highsmith
2010 Tom Cat 255, Cat O' Mine
Yamaha F150, LXF150 |
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cjcarman
Joined: 16 Jan 2017 Posts: 9 City/Region: Alaska
State or Province: AK
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Posted: Tue Jul 31, 2018 9:04 pm Post subject: Tomcat fuel system |
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Thank you for the advice. I pulled up all the panels and detected a strong smell in the port side gunnel. I am airing it out and plan to use your advice. Anyone have pictures of their Clam shell vents? Thank you again.
CJ Carman |
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Pacificcoast101
Joined: 29 Sep 2007 Posts: 718 City/Region: Torrance
State or Province: CA
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
Vessel Name: No Pressure
Photos: No Pressure
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Posted: Tue Jul 31, 2018 9:14 pm Post subject: |
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