Problem with filling the gas tank

[gnrphil]

Guy's I'm having problems filling the tank (I hope anyway ) , when filling on the trailer fuel comes out of the vent so I topped of at the marina when I launched thinking it's because of the way she sits on the trailer. Took her on a 14 mile round trip in some choppy conditions, next time filled up at the marina and I'd used 18 gallons of fuel??. Either it still wasn't full or that's some seriously bad gas mileage. Any ideas.

[Juan]

May or may not be your problem but there have been several cases where the fuel fill line is crimped and causes the fuel to back up, fill very slowly and shoot out the fuel vent. I'm guessing your tank only seemed full and the gas pump shut off when the fuel backed up in the fill line. There are some threads about it somewhere on the forum.

[gnrphil]

Thanks Juan, I'll have a look for those  emthup

[yolo]

I had the same problem when i had my 220 and it will happen on my 238 as well.

Two things

1) And this is not the problem. Pressures are different on the station pumps vs fuel dock pumps (I own a gas station).

2) The nozzles have different angels. When you put the station one in the hand sits horizontal (per say) to the car and the nozzle shoots down. When your filling the boat on land you are most likely keeping the hose and nozzle on the outside of the boat and the handle when you put it in the boat is vertical. So when your starting to the fill the fuel is shooting back into the hose and going out the vent.

When your filling on the trailer at the station. Don't fill at full pressure until you figure this out and turn the handle of the pump back into the boat so the angle of the nozzle is consistent with the fuel line going down and back into the bilge.

Make sense?

[gnrphil]

Thanks Yolo, yeah that makes some sense. I was wondering if it's possible there was air trapped in the tank mot allowing a proper fill, and once I ran it in some chop that shock things up and cleared it ??

[yolo]

Unless the vent got clogged, but still very unlikely

Trust me. Just make sure the handle on the pump is inside the boat when you fill it.

Think about when you fill it in the water. Your standing in the boat when you put the pump in and on. The handle is either inside the gunwale or (for the CCs with the pitch) facing astern.

When you go to the pump at the station with the boat on the trailer, its prob facing out towards the pump. Its the angle the fuel is flowing and "shooting" thats washing it out that vent like that.

[gnrphil]

Thanks again Yolo, I'll do that in the future and yes like you said on the trailer the handle was in line with the pump and at the dock it was in line with the gunnel or facing the same way as at the pump now that I think about it.
Cheers for the help mate I was hoping you'd chime in as you owned one.

[rtm]

My fuel tank used to fill up in my sea Pro 2008. Now the fuel spits back out. Don't see a real way to get into the vent. I tried all kinds of angles with the fuel nozzle. It used to work and now it doesn't.

[gnrphil]

Dec 22, 2022 12:43:34 GMT -6 rtm said:

My fuel tank used to fill up in my sea Pro 2008. Now the fuel spits back out. Don't see a real way to get into the vent. I tried all kinds of angles with the fuel nozzle. It used to work and now it doesn't.

Which model boat do you have, mine has an access hole behind the vent/fill.