Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Dauntless 180 wont take gas

Posted by rmatthews95 on 06/04/14 - 6:44 AM
#1

my 2008 boston whaler dauntless 180 will not take gas, but tank guage showing empty. when i put gas into intake on side of boat it backs up and just drains into tank very slowly, as if vent is clogged. i can see that tank has at least some gas in it, maybe 1/8 tank. dont know how it could be or how to check and fix. also, gas not coming into water separator near engine. help plz

Edited by Phil T on 06/04/14 - 8:43 AM

Posted by gchuba on 06/04/14 - 7:01 AM
#2

Sounds like possible blockage for either the vent or possibly the fill hose. Detach the hoses on the top of the tank and blow compressed air through them, away from the tank. You may want to tape the tank fill tubing to prevent debri getting in. Sender may be bad but I doubt it, no fuel getting to motor filter.

Garris

Posted by wing15601 on 06/04/14 - 7:36 AM
#3

Examine the vent fitting closely. Mud dauber wasps love to build their mud huts there.

Posted by Phil T on 06/04/14 - 8:42 AM
#4

Take a close look at this manufacturer's drawing. Note there is a fill hose from the deck fill AND a vent hose. Either can be clogged.

Fuel system installation:

http://www.bostonwhaler.com/boat_grap...5328PM.pdf

http://www.bostonwhaler.com/boat_grap...1730PM.pdf

These diagrams are available on www.bostonwhaler.com
http://www.bostonwhaler.com/page.aspx.../page.aspx

Posted by skred on 06/05/14 - 4:37 PM
#5

I had the same syndrome on my 16 Dauntless. I had the separate tank vent on the outside of the gunwale. Both the filler line, and the vent line were clear of any blockages. Turned out that the boat normally sits very low at the stern, and the tank is actually then tilted at a bow-to-stern angle. It took very little residual fuel inside the tank to block the vent, and the result was the blowback thru the filler, which prevented any efficient filling activity. I had to have a couple passengers sit in the bow to trim the boat enough to clear the fill vent opening in the tank. I finally resorted to filling the tank while the boat was still on the trailer.