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Removing questionable fuel

 
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Surveyor1



Joined: 05 Sep 2021
Posts: 7

PostPosted: Tue Oct 19, 2021 3:29 pm    Post subject: Removing questionable fuel Reply with quote

Just bought a 98 CD22 and I want to remove some fuel of questionable age/quality. Tried plastic tubing into the fill port but ran into anti-siphon I think. Removed fuel line from kicker and tried to start a siphon with the primer bulb to no avail.
Any ideas?
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ssobol



Joined: 27 Oct 2012
Posts: 2687
City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
PostPosted: Tue Oct 19, 2021 4:17 pm    Post subject: Re: Removing questionable fuel Reply with quote

Surveyor1 wrote:
Just bought a 98 CD22 and I want to remove some fuel of questionable age/quality. Tried plastic tubing into the fill port but ran into anti-siphon I think. Removed fuel line from kicker and tried to start a siphon with the primer bulb to no avail.
Any ideas?


The filler hoses can have a pretty good S bend in it which might make getting a siphon hose into the tank tricky. If the boat has a Racor filter, I'd try siphoning from the inlet hose to the filter. Make sure the fuel shut off valve is open to the tank you want to siphon.
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thataway



Joined: 02 Nov 2003
Posts: 19448
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Tue Oct 19, 2021 6:07 pm    Post subject: Reply with quote

I use an automotive fuel pump. If you have a Racor filter, it will most likely have two inputs and two outputs. You want to pump the questionable fuel thru the second input--that way you are not running the fuel thru the filter.

The automotive fuel pump, needs a small inline paper type of filter or screen mesh type of filter. You want the pump, the battery powering it (can be the boat's battery) and the container you are putting the fuel into away from the boat. I use an. ignition protected switch.

If you don't have a razor, then take the hose off the motor and attach the suction hose to the automotive inline pump to this.

Legally discard the fuel, or burn it in small engines, mixed with fresh fuel.

_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL
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T.R. Bauer



Joined: 17 Nov 2007
Posts: 1497
City/Region: Wasilla
State or Province: AK
C-Dory Year: 1993
C-Dory Model: 22 Cruiser
Vessel Name: C-Whisperer
PostPosted: Tue Oct 19, 2021 9:53 pm    Post subject: Reply with quote

There is a big bend like the others noted. It's also pretty easy to just remove the filler hose at the tank and start siphoning.....been there and done that.
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gstraub



Joined: 02 Aug 2017
Posts: 74
City/Region: Callao
State or Province: VA
C-Dory Year: 1998
C-Dory Model: 22 Cruiser
Vessel Name: EnDoryFun
Photos: EnDoryFun
PostPosted: Wed Oct 20, 2021 5:15 am    Post subject: Reply with quote

I did what Bob describes when I got my C-Dory and wanted to remove the old fuel. My filter doesn't have a spare port, so I pulled the filter input line and attached the pump there.
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Gerhard
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multimediasmith



Joined: 23 Aug 2021
Posts: 8
City/Region: New Orleans' Northshore
State or Province: LA
C-Dory Year: 2009
C-Dory Model: 25 Cruiser
Vessel Name: ENDEAVOR
Photos: ENDEAVOR
PostPosted: Wed Oct 27, 2021 12:54 am    Post subject: Reply with quote

Good method Bob... I finally got in the water this weekend and realize that I don't know how much fuel is on board... It's pretty close to 1/4 tank with weight in the stern, so I would like to calibrate to know just how much is on board. I could siphon the remainder, or fill up. I don't particularly want all that weight, but I've heard that in our humid climate in winter, it's better to keep a full tank to prevent condensation. What do you guys think?
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forrest



Joined: 02 Nov 2003
Posts: 356
City/Region: Chehalis
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 26 Venture
Vessel Name: Long Story
Photos: Long Story
PostPosted: Wed Oct 27, 2021 1:28 pm    Post subject: Reply with quote

Shove a small finish nail along the side the ball check valve in the kicker motor supply hose. Lift the end of the hose above the height of the fuel tank. Gently pump primer bulb until hose is completely full and fuel is seeping out end of hose. Drop hose into a fuel can and a siphon will start. Pump primer bulb a few times to make sure the flow is going well. Have an extra 5 gallon can to swap over when first container is full. Be careful not to leave to prevent overflow. Pour the removed fuel into your pickup (only if from previous boating season).
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Peter & Judy



Joined: 03 Dec 2014
Posts: 408
City/Region: Olds
State or Province: AB
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Mistaya
Photos: Mistaya
PostPosted: Wed Oct 27, 2021 2:00 pm    Post subject: Reply with quote

Quote:
Pour the removed fuel into your pickup (only if from previous boating season).


Unless you have a diesel truck.

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Peter & Judy Haase
Buffalo Horn Ranch

HMCB Mistaya
"Mistaya" (Grizzly Bear in Cree)
HMCB (Her Majesties Cute Boat)
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T.R. Bauer



Joined: 17 Nov 2007
Posts: 1497
City/Region: Wasilla
State or Province: AK
C-Dory Year: 1993
C-Dory Model: 22 Cruiser
Vessel Name: C-Whisperer
PostPosted: Wed Oct 27, 2021 10:15 pm    Post subject: Reply with quote

Peter & Judy wrote:
Quote:
Pour the removed fuel into your pickup (only if from previous boating season).


Unless you have a diesel truck.


Ha! Good point Smile
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