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Author Topic:   Fuel level 2000 Dauntless 16'
RLSmith posted 04-29-2003 03:53 PM ET (US)   Profile for RLSmith   Send Email to RLSmith  
A new-to-me boat. My fuel gauge reads at the top of the red zone, but fuel backs up the filler when I pump. This boat has a metal filler cap at the stern and a separate screened fuel vent amidships on the port side, so it should not be subject to the problems mentioned in other posts caused by the combo plastic filler cap/vent.

1. Anyone having a similar Dauntless with the port-side vent, please let me know whether you have the same problem.

2. How can I visually inspect fuel level to confirm gauge works? I can see the 45 gallon poly tank in the bilge but can't see through the tank wall well enough to determine the level. I assume removing the fuel level sender (underneath the pilot seat) will let me look inside the tank. Has anyone removed the fuel level sender?

3. In the event the tank is full and the gauge is inaccurate, is there any way to calibrate a gauge or do I just replace it (or replace the sender)?

See my recent post http://continuouswave.com/ubb/Forum3/HTML/003905.html for a few more details.

prm1177 posted 04-29-2003 05:39 PM ET (US)     Profile for prm1177  Send Email to prm1177     
Why not pump out the internal tank and see how many gallons you actually have in there vs the spec?
RLSmith posted 04-29-2003 06:08 PM ET (US)     Profile for RLSmith  Send Email to RLSmith     
Pump out the tank, good idea should have thought of that. Any idea what might be lying around the house that I can pump 45 gallons of gas into? Unfortunately my cars take hi-test or I could just fill them up.
holmestk posted 04-29-2003 09:37 PM ET (US)     Profile for holmestk  Send Email to holmestk     
Your tank may not be full. I have the same boat, and have experienced similar issues. I either have to: fill very slowly (about 10-15min fill from empty), or pull in with a slight downhill attitude. My local station is on a hill so this helps. As soon as I pull the nozzle handle past halfway, it always overflows out the filler.
Dick posted 04-29-2003 09:46 PM ET (US)     Profile for Dick  Send Email to Dick     
After installing the fill and vent upgrade The boats still would not fill properly.
The only answer is to fill slowly, very slowly.
Dick
bsmotril posted 04-29-2003 10:13 PM ET (US)     Profile for bsmotril  Send Email to bsmotril     
You can probably use one of those battery operated stud finders sold at Home Depot to find the fuel level in the tank. Might also try tapping it with the handle of a screwdriver and listening for the change in tone.
BillS
fno posted 04-30-2003 08:03 AM ET (US)     Profile for fno  Send Email to fno     
The problem you are having is that fuel is coming out of the vent, very common. Had the same problem. The fuel in the tank sloshes back and forth for several minutes after pulling into a gas station. This causes either the filler or the vent to overflow as the fuel level gets higher during filling. I tried the slow fill solution, too slow. Here's what to do. Pull in to the staion, fill the vehicle first, pick up ice, chips, beer, fill the boat with fuel.
bsmotril posted 04-30-2003 09:31 AM ET (US)     Profile for bsmotril  Send Email to bsmotril     
If the fuel fill hose enters the tank at the front, and the trailer tongue is too low, you would cause these symptoms if there was no air gap in the tank under the hose. Might try finding a gas station with a slope, or crank down the tongue jack to raise the nose to test this theory.
BillS
RLSmith posted 04-30-2003 11:06 AM ET (US)     Profile for RLSmith  Send Email to RLSmith     
Thanks for all the valuable input. Keep it coming. Comments on prior suggestions:

bsmotril - I have a stud finder and will give it a try. This would at least make it useful for something, because it does not work in my fify-year-old house with metal-lathe thick plaster walls. I had a "modern" house when I bought the stud finder.

fno - Fuel is not coming out of the port-side vent. I watched this very closely. Regardless, I will let the boat rest for a while before filling next time.

bsmotril - The fill hose enters the tank at the extreme rear. The vent hose enters the tank at the front. So I might have the opposite problem you described - no air gap to the vent. I can take a level with me to the gas station, and crank the trailer jack until the tank top is level. That will ensure a "best-case" air gap both for vent and fill hose.

prm1177 posted 04-30-2003 12:46 PM ET (US)     Profile for prm1177  Send Email to prm1177     
If you expect that you have a full tank (45 gallons or so), the other method I would use would be to take along a portable tank as a return fuel source, and run the large tank dry. Then you can refill and get a reasonably accurate assesment of the capacity of the large tank.
RLSmith posted 05-01-2003 11:46 AM ET (US)     Profile for RLSmith  Send Email to RLSmith     
Stud finder didn't work but as I was using it with a strong mag-lite I finally was able to just barely see the fuel level through the wall of the poly tank. Side note: Be careful how far you stick your head into the bilge through the motor well hatch. I nearly got stuck and the thought of how pitiful that would be made me start laughing, which aggravated the problem. I envisioned my wife coming out to look for me after a few hours, and finding me stuck in the boat, on the trailer in the driveway. That would not enhance her opinion of my boating skills.

The tank is flat on top, angled on bottom to match hull shape. The fuel level is up to the point where the tank side wall meets the angled bottom. I realize this is confusing, but I estimate 1/4 full.

So my fuel gauge, which reads in the red, is not accurate. And I must also have a fill problem because there is no way I already used 3/4 tank (>30 gallons). I will follow advice given above when filling to avoid overflow (wait, slow, level, etc.).

Any advice on troubleshooting the gauge problem? The sender at top center of the tank is accessible under the pilot seat.

BTW, I did take an extra gas container because I had no idea how much fuel was onboard, and was scared of a long paddle.

BWdaunt18 posted 05-01-2003 02:16 PM ET (US)     Profile for BWdaunt18  Send Email to BWdaunt18     
I have a 2001 Daunt 18. My guage appear to work ok nut gas will spill out if I fill too quickly.

I have read other posts regarding similar complaints.

I would e-mail Whaler. I have found them to be pretty helpful. I may be mistaken, but I have a vague recollection of a recall.

jimh posted 05-03-2003 11:20 AM ET (US)     Profile for jimh  Send Email to jimh     
See [url] http://www.boatsafe.com/links/index.htm[/url] for links to a database of safety recalls.
RLSmith posted 05-05-2003 02:02 PM ET (US)     Profile for RLSmith  Send Email to RLSmith     
Looked at boatsafe.com but could not find any recalls for my specific boat. Some of the wider-reaching recalls are hard to interpret b/c not much info given there.
RLSmith posted 05-25-2003 10:11 PM ET (US)     Profile for RLSmith  Send Email to RLSmith     
To keep everyone up-to-speed... Using a piece of stiff coaxial cable, I snaked the filler hose. Then I removed the vent hose from the port-side thru-hull fitting, and snaked it. I didn't detect any obstructions so I was not optimistic. But on the next trip to the gas station, parked in exactly the same place - SUCCESS! Fuel flowed in just fine. Hopefully this is a permanent state.
cmarques posted 05-26-2003 08:16 PM ET (US)     Profile for cmarques  Send Email to cmarques     
Just filled the tank on my 2002 Dauntless 160- ran off shore with it and came back in to port reading less than 1/4 tank. To my surprise the tank only took 23.5 gallons to fill up to top of filler neck on 45 gallon tank. Also always had a problem filling tank then blowing gas out of vent and filler when trailed behind my old s-10, now pulled 1st time behind new f-150 where hitch sits approx 3" higher and no problem filling or backing up vent or filler- maybe higher in the front does help with venting?
Hugh Williams posted 06-03-2003 07:15 PM ET (US)     Profile for Hugh Williams  Send Email to Hugh Williams     
I have a 1999 16 Dauntless and had the same fueling problem with the plastic vented cap. I complained to Boston Whaler and they upgraded my system for free to a side vent. This helped a lot but i still have trouble when filling up in the water. I found that having a friend stand on the bow helps here.

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