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John S
Joined: 06 Jul 2006 Posts: 277 City/Region: Sterling
State or Province: AK
C-Dory Year: 2000
C-Dory Model: 24 Tomcat
Vessel Name: TomCat
Photos: TomCat
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Posted: Sun Dec 23, 2007 4:52 pm Post subject: |
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I was never looking for something that would allow me to walk away from an unattended fueling.
I just needed a venting system that doesn't admit water into the fuel system. I chose the above vent because it claimed to not dribble fuel out of the vent when the tank was full as a bonus.
Instead, fuel shoots out around the nozzle even while hand fueling fast or slow speed with this particular Attwood vent.
Still looking for the best vent system to install in my current vent location, which is in a splash zone. _________________ John
2000 TomCat 24
BF90 Hondas
www.AlaskaAdventureJournal.com |
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tsturm
Joined: 01 Nov 2003 Posts: 1134 City/Region: Soldotna
State or Province: AK
C-Dory Year: 2003
C-Dory Model: 25 Cruiser
Vessel Name: JMR TOO
Photos: JMR-TOO
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Posted: Sun Dec 23, 2007 5:01 pm Post subject: |
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John S wrote: | I was never looking for something that would allow me to walk away from an unattended fueling.
I just needed a venting system that doesn't admit water into the fuel system. I chose the above vent because it claimed to not dribble fuel out of the vent when the tank was full as a bonus.
Instead, fuel shoots out around the nozzle even while hand fueling fast or slow speed with this particular Attwood vent.
Still looking for the best vent system to install in my current vent location, which is in a splash zone. |
Sounds like the Vent is unable to Vent, pressure in the tank wants out, only exit is through the fill? Check for a kink in the vent hose etc? If you ever get fuel / water in the P Trap in the vent line how is it going to vent??? |
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John S
Joined: 06 Jul 2006 Posts: 277 City/Region: Sterling
State or Province: AK
C-Dory Year: 2000
C-Dory Model: 24 Tomcat
Vessel Name: TomCat
Photos: TomCat
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Posted: Sun Dec 23, 2007 5:14 pm Post subject: |
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tsturm wrote: | John S wrote: | I was never looking for something that would allow me to walk away from an unattended fueling.
I just needed a venting system that doesn't admit water into the fuel system. I chose the above vent because it claimed to not dribble fuel out of the vent when the tank was full as a bonus.
Instead, fuel shoots out around the nozzle even while hand fueling fast or slow speed with this particular Attwood vent.
Still looking for the best vent system to install in my current vent location, which is in a splash zone. |
Sounds like the Vent is unable to Vent, pressure in the tank wants out, only exit is through the fill? Check for a kink in the vent hose etc? If you ever get fuel / water in the P Trap in the vent line how is it going to vent??? |
In my earlier post on this thread you will find a link to a article where the "fuel vent" I chose was tested and found to have the problems I am having. My problem isn't trying to figure out why fuel is spraying out around the nozzle, I was just trying to share some info about a crappy product, that doesn't live up to its claim. It's a real good article and worth checking out. http://www.boatus.com/foundation/Findings/findings40/inlinefuel.htm |
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CAVU
Joined: 02 Nov 2003 Posts: 665 City/Region: Spokane
State or Province: WA
C-Dory Year: 2002
C-Dory Model: 22 Cruiser
Vessel Name: CAVU
Photos: CAVU
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Posted: Sun Dec 23, 2007 6:32 pm Post subject: |
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I don't know how the tank on a tomcat is positioned but on the 22, the plastic tanks and their shape create a problem for filling. The top of the tank is not flat. At least on my boat it is slightly warped and bulged in places. When filling I stand on the side being filled and the boat lists toward that side. As the tank approaches full any slight movement or wake can cause the fuel to slosh over toward the fill and vent lines which are close together and you get the familiar burp of fuel out either the vent line or fill opening. The only reliable solution I have found is to move ice chests or crewmembers to the opposite side and attempt to create a slight list away from the filler. This seems to insure a good fill unless you get a little wake at the fuel dock. _________________ Ken Trease
22 CD Cruiser, CAVU
Twin 40HP Hondas |
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rogerbum
Joined: 21 Nov 2004 Posts: 5922 City/Region: Kenmore
State or Province: WA
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
Vessel Name: Meant to be
Photos: SeaDNA
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Posted: Sun Dec 23, 2007 10:39 pm Post subject: |
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CAVU wrote: | I don't know how the tank on a tomcat is positioned but on the 22, the plastic tanks and their shape create a problem for filling. The top of the tank is not flat. At least on my boat it is slightly warped and bulged in places. When filling I stand on the side being filled and the boat lists toward that side. As the tank approaches full any slight movement or wake can cause the fuel to slosh over toward the fill and vent lines which are close together and you get the familiar burp of fuel out either the vent line or fill opening. The only reliable solution I have found is to move ice chests or crewmembers to the opposite side and attempt to create a slight list away from the filler. This seems to insure a good fill unless you get a little wake at the fuel dock. |
Ken,
That was the point I was trying to make - e.g. that the shape of the tanks and/or the locations in the tanks to which the fill and vent lines are attached may be the problem as opposed to the venting device itself. Also, that the position of the boat in the water may affect the ability to fill and or vent. Hence, it may not be the vent product that is crap but the overall design of the fuel system itself and (perhaps) an unrealistic expectation that the fuel system will perform more like that of a car in terms of the automatic stopping on the fuel pump. _________________ Roger on Meant to be |
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John S
Joined: 06 Jul 2006 Posts: 277 City/Region: Sterling
State or Province: AK
C-Dory Year: 2000
C-Dory Model: 24 Tomcat
Vessel Name: TomCat
Photos: TomCat
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Posted: Sun Jun 08, 2008 3:00 pm Post subject: |
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Problem Resolved:
Just wanted to update this situation. We finally resolved it, I think. Last week I replaced the entire intake assembly on my BF-90 that had drank all the salt water. This include four brand new carbs, intake manifold, etc., etc. $1300. You wouldn't believe all the crap that salty water inside of carbs can make. We started the season off with floats sticking multiple times. A carb main jet plugging. Our Honda shop attempted to clean up one of the carbs before giving up and recommending full replacement.
To stop the water from coming in I've moved the tank vents to the same place as EVERY OTHER Tomcat I've ever seen and I went thru ALL the photos I could find. Some Dumba** at the factory decided to drill the holes for mine below the rubrail instead of above it like EVERY other Tomcat I've seen. I changed out C-Dory's straight vent hose for a longer piece of looped hose and the problem seems to be solved.
(Interesting note, I stopped to talk with a C-Dory rep at the Seattle Boat Show about my water problem and VERY soon after he escorted me off to a booth selling tackle to show me his favorite flasher and see me off)
I should have know something was going on when I bought the boat from the previous owner and there were 4 bottles of STP Water Treatment on board the boat that came with it.
By the way I got rid of the fancy vents with a P-trap built into them that caused fuel to literally shoot out from around the nozzle and went back to the standard chrome vent with the two holes directed downward.
I'm happy to have this issue behind us. |
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Chester
Joined: 04 Sep 2006 Posts: 1176 City/Region: home
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sold to lovely couple
Photos: Chester
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Posted: Sun Jun 08, 2008 7:42 pm Post subject: |
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You can use the fuel line to siphon the tank. Find a piece of plastic to hold the check valve ball open on the motor end of the fuel line. The red straw that comes with WD-40 will work. Prime the line with the squeeze bulb and let it trickle into a container, it is a slow process. You prolly already know this, keep the engine end of the bulb up when you squeeze it.
After you empty the tank pour a couple gallons of clean fuel into the tank and siphon it out again, repeat untill no more water comes out.
Good luck. |
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