Slow fill up and sudden overflow

homerjack · Posted: Wed Jun 12, 2019 1:24 pm Post subject:

Same problem. Sometimes made worse if pump rate is set too high. I have stack of absorption pads on board and use one to smother fill opening. Note: If you fill too slow at the end, it may not be enough flow to trigger nozzle shut off and end up flowing out of vent port. Don't ask me how I know.

C-Green · Posted: Wed Jun 12, 2019 10:04 pm Post subject:

I find I can fill faster when I don't bury the nozzle as far as possible - I'd say I only bury about half the nozzle. I think a full bury puts the discharge of the nozzle against the first bend and hence it shoots back up at you.

Jay

Nancy and Bud · Posted: Sun Sep 20, 2020 5:01 pm Post subject:

What a PIA.

Tried to fill both thanks this afternoon. With less than one gallon in each tank it spewed gas both in the cockpit and over the sides.

Is this the best C-Dory can do??????

From the posts above it looks like a shorter fill hose works as well as cross venting between tanks.

Anyone with newer 22's experiencing the same problem???

hardee · Posted: Sun Sep 20, 2020 11:10 pm Post subject:

Whether it over fills or not depends on mostly 2 things. First, How fast you fill. And some places (Roche Harbor in my favorite) has a valve where you can adjust the fill speed right on the fill handle. So. slow is the word. Second, Listen to the fill sound, (and with the super cool, C-Dory Gas gauges -- read see through tanks, Keep an eye on the fill level and shut it off before you are 1.5 inches from the top of the tank.

Harvey
SleepyC Moon

tsturm · Posted: Sun Sep 20, 2020 11:23 pm Post subject:

Nancy and Bud · Posted: Mon Sep 21, 2020 3:19 pm Post subject:

Well, it's been a heck of a day. Got all of the fuel fill lines and vent lines out of the boat.

Check out this pic. Big dent that had to affect filling.

Off to get new hoses and T's to replace the old ones and combine the vents.

tsturm · Posted: Mon Sep 21, 2020 4:41 pm Post subject:

AKFisher · Posted: Wed Feb 10, 2021 5:47 pm Post subject: UPDATE

Well I gave it a full year to try the slow fill method and turning the fill handle is certain direction to see if there was a sweet spot. So far there is really no best practice. I will be looking into new hoses and cross venting with possible check valve.

I appreciate all the advice and help from all you dedicated C-Brats. Thumbs Up

Pacificcoast101 · Posted: Wed Feb 10, 2021 8:52 pm Post subject:

My fill hoses are straight. The starboard hose was four inches short and came off during filling, causing 40-50 gallons of gas to pour into the bilge. I replaced it with a longer hose.

I have gas burp out of the vent most times I fill, even when filling slowly. I've found that listening for gurgling and stopping before the tank is completely full helps.

Jim from New York · Posted: Thu Feb 11, 2021 6:20 am Post subject:

I also have this problem and it doesn’t look to easy to straighten out the vent lines. Has anybody tried the clean way fuel fill kit you put in the fuel fill first and it acts as a baffle it looks like a good answer for this. Any opinions?
Jim

https://cleanwayfuelfill.shop/

B95054 · Posted: Thu Feb 11, 2021 9:28 am Post subject:

I can’t speak to C-Dory because I cannot find one to buy yet, but I did battle this problem for a couple of years on my last Bayliner. I had to trickle the fuel in or it would splash back everywhere. When I looked at the vent and screen it looked perfectly fine so I never suspected it to be the problem. Finally one day out of frustration I disconnected the vent hose from the vent and suddenly could fill at full speed. Replace the little chrome vent outlet and my problem was gone. Point being that if venting is inadequate gas will back flow and shoot right out at you. I recommend disconnecting your vent hose and then trying to fill to see if your problem goes away and if that does not work then explore ways that you may be able to increase the venting.

ssobol · Posted: Thu Feb 11, 2021 10:37 am Post subject:

B95054 · Posted: Thu Feb 11, 2021 7:25 pm Post subject:

I can’t speak to C-Dory because I cannot find one to buy yet, but I did battle this problem for a couple of years on my last Bayliner. I had to trickle the fuel in or it would splash back everywhere. When I looked at the vent and screen it looked perfectly fine so I never suspected it to be the problem. Finally one day out of frustration I disconnected the vent hose from the vent and suddenly could fill at full speed. Replace the little chrome vent outlet and my problem was gone. Point being that if venting is inadequate gas will back flow and shoot right out at you. I recommend disconnecting your vent hose and then trying to fill to see if your problem goes away and if that does not work then explore ways that you may be able to increase the venting.