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Author Topic:   Ventilation - Dauntless 16
skred posted 04-06-2004 10:23 AM ET (US)   Profile for skred   Send Email to skred  
While picking up my newly-acquired '99 Dauntless 16, I was looking at the 2003 model of the same boat. The new model has a small circular vent in the back of each of the stern seats, which open into the bilge/fuel tank area. My '99 doesn't have them. I didn't see any powered fan assemblies anywhere near them. On my 16, there's a noticeable odor of gasoline when I access the bilge/fuel tank area. Anyone know if the vents on the newer models are 1. powered; and 2. Do the vents have a water-seal flap to keep out any water infiltration from over the stern? 3. If they're a good idea, where can I find 'em? (Other than BoatUS, etc.)

cmarques posted 04-06-2004 06:41 PM ET (US)     Profile for cmarques  Send Email to cmarques     
That gas smell is probably plastic stink from the fuel tank. Mine smelled so bad when I bought it that I called the dealer and Whaler concerned about it and they said the plastic tank emits an odor- I think this was discussed once before. I used to leave the console door open when in the garage to 'air it out' I remember seeing the vents on the 2003's when I took the plant tour and they appear to be vents only. BUT- if it smells like gas definitely check for leaks!!!


fno posted 04-06-2004 08:56 PM ET (US)     Profile for fno  Send Email to fno     
The gas smell is from permeation from the polyethylene tank. I had a 2000 Dauntless that had this odor. The vents are BW's fix for the smell. No flaps on the vents and no fans either. I always put something under the stern seats so the bilge could ventilate whiel not in use. A fender or coiled rope would do it and it keeps all the stuff down there from mildewing also. Even with the vents I would do it.
skred posted 04-07-2004 07:41 AM ET (US)     Profile for skred  Send Email to skred     
Thanks much for the observations... I'm going to put a vent in each seatback like the 2003 to help alleviate the odor. It does smell gassy, but the fuel system has been checked and tested, and also had a factory fix for the filler tube assembly installed. I'm sure you're right that it's the plastic combined with the poly tank emitting some odor through. I was mostly concerned, because if I want to store anything in there, it will most likely pick up the odor, so I'm limited to what I can store there. i.e., I wouldn't store extra PFD's, foul weather gear, or any other absorbent items. I'll take your advice on also opening the console door and seats - certainly can't hurt...
Marlin posted 04-07-2004 11:21 AM ET (US)     Profile for Marlin  Send Email to Marlin     
Ditto to fno's comments for my 2003. The vents are simply that, nothing fancy. Things stored inside the center console (where I keep the PFDs) do pick up a bit of a gasoline smell. Nothing too serious, and not particularly noticable outside, but when I tossed them all in the car to take them home for the winter it sure was noticable!

I often leave the console door open when the boat's not in use, but propping up one or both of the rear seats sounds like a good idea too.


Perry posted 04-07-2004 01:19 PM ET (US)     Profile for Perry  Send Email to Perry     
My 2002 Dauntless 160 has no vents so when I store it in my garage, I keep the console door ajar and both rear seats open a couple inches so the bilge airs out.
RLSmith posted 04-07-2004 01:39 PM ET (US)     Profile for RLSmith  Send Email to RLSmith     
I have a 2000 Dauntless 16. It might be my imagination, but the gas odor in the center console appears to be minimized if the fuel tank vent is kept clear.

Details: The fuel tank vent exits the hull through a stainless steel fitting amidships on the port side. This somehow gets obstructed, presumably by gas. I don't boat in enough sea state to take in water there. You can tell it is obstructed when gas backs up the filler when gassing up. I have gotten into the habit of opening the fuel filler cap and blowing into the vent prior to gassing up. Then I can add gas at full speed. Unfortunately it took me several abandoned fill-ups to arrive at this solution.

Some owners have reported a similar problem; others have not. I realize this doesn't make a whole of sense. Maybe I am just accustomed to the gas odor now...

I like the tip about keeping the back seats open a bit. Seems obvious but I had never thought about it. I see mildew all over the bilge pump drain hose.

Congratulations on your "new" boat. I am very happy with mine. Please report back your experience procuring and installing the seat-back vents.

skred posted 04-07-2004 02:27 PM ET (US)     Profile for skred  Send Email to skred     
Thanks for the good wishes. I'm going crazy waiting to launch her. I never noticed a vent on the port side amidships. Is it inside our outside the gunwhale? I will definitely seek that vent out and check it regularly.
The vents I plan to install are simple, hardware-store 3- or 4-inch round louvered type (plastic?) Alternatively, BoatUS sells Stainless (306) 3 x 4 or 5 inch rectangular vents for about $2.50 each... I'm not fussy. the new boats use plastic round types... Anything to get the air moving in there... I'm so new to this boat, I haven't even found a bilge pump yet... I know there's one in there somewhere...
cmarques posted 04-07-2004 09:42 PM ET (US)     Profile for cmarques  Send Email to cmarques     
Hope you are in the water soon! The vent is on the outside port side with a cover plate for access on the inside. They do get blocked up and can be a real sob to fuel until cleared. Be careful as the fuel can spew back up the filler if no venting. Aa few weeks ago at the local Amoco, the attendent dramatically came out spreading kitty litter behind my boat as it shot gas back. "Sir your spilling gas everywhere" "no s#@t, I'll be done soon"

Have fun


skred posted 04-08-2004 08:26 AM ET (US)     Profile for skred  Send Email to skred     
Thanks for the heads-up on the vent.. I wonder if my dealer was referring to that vent when he mentioned that my boat had a "factory fix" done on the fuel system. He didn't elaborate.
I'm desperately resisting the urge to trailer down to Lake Michigan here and wet this hull. Unfortunately the weather forecast for Sunday says the high will be 37 and the low 27. I may be fanatic, but not crazy...
skred posted 04-12-2004 08:29 AM ET (US)     Profile for skred  Send Email to skred     
After climbing all over my 16D, I couldn't find a hint of a gas vent on either side. Recalling my dealer's "factory fix" conversation, I checked the filler cap area, and my filler appears to have a some sort of vent right inside the filler neck at the top. Anyone familiar with that kind of setup?
cmarques posted 04-12-2004 07:33 PM ET (US)     Profile for cmarques  Send Email to cmarques     
Never heard of that. There's nothing inside my filler cap.

Here you can see the vent on the port side of my 2002


Marlin posted 04-12-2004 08:55 PM ET (US)     Profile for Marlin  Send Email to Marlin     
Sorry Chris, looks like a broken link. You can see the vent (not in much detail) just to the left of "Golden Daze" at:

It's a little stainless button maybe 3/4" diameter with a screened hole pointing down and another one pointing aft. Inside the boat, below the gunwale directly opposite the console door, is an inspection port that lets you get to the vent hose and grounding wire.

I'd heard that there was a service bulletin (recall?) for some of the early Dauntless 16s to correct a fuel vent deficiency, but I never heard what the fix was.


RLSmith posted 04-12-2004 11:56 PM ET (US)     Profile for RLSmith  Send Email to RLSmith     
I recall from prior discussions there are two different configurations of fuel filler and vent for this boat. The first is a plastic fuel filler cap with an integrated vent. The second is a flush stainless steel fuel filler cap with a separate port-side vent.

My 2000 has the latter. Unscrewing my cap requires one of those metal thingamabobs (attached to my keychain).

Perhaps the service bulletin replaces the former with the latter?

skred posted 04-13-2004 08:38 AM ET (US)     Profile for skred  Send Email to skred     
Yes! I knew there must be an answer. My filler cap is plastic and is about 3/4 inch high, not flush. It has the integral vent just inside the filler tube/cap at the top. Mystey solved. Thanks, guys!
My daughter insists I put a telephone in the garage, since I'm always out there with the boat now. I tried to explain to her that the reason the boat's not in my bedroom is because it can't make the turn in the hallway.... Geez, I wish it'd warm up here! 27 this morning! The squirrels are starting to rebuild....

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