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Author Topic:   Identify Fuel Tank Connections

picflight posted 12-28-2013 05:49 PM ET (US)
Hello. I managed to drain the fuel tank with a combination of PVC pickup tube, clear hoses from the big-box store, and a fuel pump. I found some orange gunk on the bottom, so now my task is to do some filtering and flushing. I plan to add about 10-gallons of fresh fuel, run it through filters into a 5-gallon can and dump it back into the tank via the deck fill.
To select a proper pick, either the sender unit opening or the original fuel line, I would like to know what are the hose connections on the tank [which in the linked image below are] marked 1, 2, and 3.
The number 2 seems to be the fill tube.
http://i771.photobucket.com/albums/xx356/abbytoca/DSC04506_1.png
http://i771.photobucket.com/albums/xx356/abbytoca/DSC04954.jpg
picflight posted 12-28-2013 06:09 PM ET (US)
And the black stuff on the connectors on the sender unit, what is that?
tmann45 posted 12-28-2013 08:45 PM ET (US)
Hose 1 is the vent. Hose 2 is the fill. Hose 3 is the pickup. The black stuff is liquid electrical tape.
jimh posted 12-29-2013 10:43 AM ET (US)
I agree with tmann45's analysis of the function of the three hoses and the black stuff.
What sort of 12-volt fuel pump did you buy? I have often thought about getting an electric fuel pump to use as a transfer pump to get fuel out of the boat fuel tank and into a portable tank. I am curious to hear what pump you used.
picflight posted 12-30-2013 04:31 PM ET (US)
I got the Mr. Gasket - Fuel Pump Part # 12S ; 35 Gallons Per Hour, 4 to 7 PSI.
Works great, good flow, not too fast, just how I wanted it to be.
I used clear hoses, not fuel rated, which I intend to dispose after this use. Clear hose gives a good visual on the debris that is coming out.
I am doing the fuel transfer right now, filter through coffee filters into another portable tank and back in the boat tank and then repeat over.
Chuck Tribolet posted 12-30-2013 09:08 PM ET (US)
During the second gas crisis in the late 1970's I bought an
electric fuel pump and rigged it with fuel grade hoses.
This allowed us to juggle fuel between the four cars we had.
It's been handy many times since. I did add a clear filter
on the intake side when the ethanol ate up my first Pate tank.
It's got about 15' wires with big clips on the end so it can
run off the car battery. I usually also hookup a battery
charger.
Chuck
picflight posted 12-31-2013 11:24 AM ET (US)
For a $46 investment in an electric fuel pump, my first time buying a fuel pump, I can see lots of uses especially for boat owners. I can foresee the need for circulating fuel or using it in cars when the boat is not much in use, although I hope that day never comes.
For me, I debated over a shop flush out the fuel for $500 (average estimate I got) or a do it yourself option. The logical choice was obvious to me. I did however also get a pack of twin pack fire extinguisher from Costco.
The flow of this fuel pump is decent enough that I can step away and not have to be at the pumping station all the time. I don't leave it unattended though.
picflight posted 12-31-2013 12:36 PM ET (US)
Coffee filters at work;
http://i771.photobucket.com/albums/xx356/abbytoca/Fuel/DSC05161.jpg
http://i771.photobucket.com/albums/xx356/abbytoca/Fuel/DSC05163.jpg
AZdave posted 12-31-2013 06:44 PM ET (US)
We needed to do draining and filtering on an Outrage 18 a few years ago. That boat had the fuel pickup near the rear of the tank. We jacked the bow up considerably, made sure the bow was securely supported, and rocked the boat during the drain. This got a lot more material out of the tank.It looks like your fuel pickup is near the filler, perhaps near the front of the tank. You might reverse the procedure and tip the bow down. Dave
picflight posted 01-01-2014 03:19 AM ET (US)
Dave--I did have the bow lowered, the pickup tube I had created was going into the tank via the sender unit hole. This is more or less the center of my tank from what I can estimate.
jimh posted 01-02-2014 09:53 AM ET (US)
Many thanks for the pictures of the fuel-coffee filter in action. What is the rating of that filter media in microns? Any idea?
cc378 posted 01-02-2014 05:46 PM ET (US)
Has anyone tried Mr. Fuunel? http://www.mrfunnel.com/Mr._Funnel/Home.html
jimh posted 01-04-2014 11:14 AM ET (US)
Re the coffee filter as a fuel filter:
When you make coffee we know that water passes through the filter element, so it seems like the coffee filter is not going to stop any water in the fuel from passing through it. I suspect that if the coffee filter had a rating in microns it would be rather high, much higher than a typical 10-micron fuel filter.
jimp posted 01-04-2014 09:23 PM ET (US)
When I got my new Merc 225 Optimax in 2003 for my 1990 Revenge 22 - W.T. I wanted to get rid of my old fuel (went into the cars). With the boat on the trailer I just attached another fuel line with primer bulb to the RACOR filter and let it siphon into a 5-gallon jerry can.
Never thought of buying a pump to replace gravity...
JimP

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Author	Topic: Identify Fuel Tank Connections
picflight	posted 12-28-2013 05:49 PM ET (US) Hello. I managed to drain the fuel tank with a combination of PVC pickup tube, clear hoses from the big-box store, and a fuel pump. I found some orange gunk on the bottom, so now my task is to do some filtering and flushing. I plan to add about 10-gallons of fresh fuel, run it through filters into a 5-gallon can and dump it back into the tank via the deck fill. To select a proper pick, either the sender unit opening or the original fuel line, I would like to know what are the hose connections on the tank [which in the linked image below are] marked 1, 2, and 3. The number 2 seems to be the fill tube. http://i771.photobucket.com/albums/xx356/abbytoca/DSC04506_1.png http://i771.photobucket.com/albums/xx356/abbytoca/DSC04954.jpg
picflight	posted 12-28-2013 06:09 PM ET (US) And the black stuff on the connectors on the sender unit, what is that?
tmann45	posted 12-28-2013 08:45 PM ET (US) Hose 1 is the vent. Hose 2 is the fill. Hose 3 is the pickup. The black stuff is liquid electrical tape.
jimh	posted 12-29-2013 10:43 AM ET (US) I agree with tmann45's analysis of the function of the three hoses and the black stuff. What sort of 12-volt fuel pump did you buy? I have often thought about getting an electric fuel pump to use as a transfer pump to get fuel out of the boat fuel tank and into a portable tank. I am curious to hear what pump you used.
picflight	posted 12-30-2013 04:31 PM ET (US) I got the Mr. Gasket - Fuel Pump Part # 12S ; 35 Gallons Per Hour, 4 to 7 PSI. Works great, good flow, not too fast, just how I wanted it to be. I used clear hoses, not fuel rated, which I intend to dispose after this use. Clear hose gives a good visual on the debris that is coming out. I am doing the fuel transfer right now, filter through coffee filters into another portable tank and back in the boat tank and then repeat over.
Chuck Tribolet	posted 12-30-2013 09:08 PM ET (US) During the second gas crisis in the late 1970's I bought an electric fuel pump and rigged it with fuel grade hoses. This allowed us to juggle fuel between the four cars we had. It's been handy many times since. I did add a clear filter on the intake side when the ethanol ate up my first Pate tank. It's got about 15' wires with big clips on the end so it can run off the car battery. I usually also hookup a battery charger. Chuck
picflight	posted 12-31-2013 11:24 AM ET (US) For a $46 investment in an electric fuel pump, my first time buying a fuel pump, I can see lots of uses especially for boat owners. I can foresee the need for circulating fuel or using it in cars when the boat is not much in use, although I hope that day never comes. For me, I debated over a shop flush out the fuel for $500 (average estimate I got) or a do it yourself option. The logical choice was obvious to me. I did however also get a pack of twin pack fire extinguisher from Costco. The flow of this fuel pump is decent enough that I can step away and not have to be at the pumping station all the time. I don't leave it unattended though.
picflight	posted 12-31-2013 12:36 PM ET (US) Coffee filters at work; http://i771.photobucket.com/albums/xx356/abbytoca/Fuel/DSC05161.jpg http://i771.photobucket.com/albums/xx356/abbytoca/Fuel/DSC05163.jpg
AZdave	posted 12-31-2013 06:44 PM ET (US) We needed to do draining and filtering on an Outrage 18 a few years ago. That boat had the fuel pickup near the rear of the tank. We jacked the bow up considerably, made sure the bow was securely supported, and rocked the boat during the drain. This got a lot more material out of the tank.It looks like your fuel pickup is near the filler, perhaps near the front of the tank. You might reverse the procedure and tip the bow down. Dave
picflight	posted 01-01-2014 03:19 AM ET (US) Dave--I did have the bow lowered, the pickup tube I had created was going into the tank via the sender unit hole. This is more or less the center of my tank from what I can estimate.
jimh	posted 01-02-2014 09:53 AM ET (US) Many thanks for the pictures of the fuel-coffee filter in action. What is the rating of that filter media in microns? Any idea?
cc378	posted 01-02-2014 05:46 PM ET (US) Has anyone tried Mr. Fuunel? http://www.mrfunnel.com/Mr._Funnel/Home.html
jimh	posted 01-04-2014 11:14 AM ET (US) Re the coffee filter as a fuel filter: When you make coffee we know that water passes through the filter element, so it seems like the coffee filter is not going to stop any water in the fuel from passing through it. I suspect that if the coffee filter had a rating in microns it would be rather high, much higher than a typical 10-micron fuel filter.
jimp	posted 01-04-2014 09:23 PM ET (US) When I got my new Merc 225 Optimax in 2003 for my 1990 Revenge 22 - W.T. I wanted to get rid of my old fuel (went into the cars). With the boat on the trailer I just attached another fuel line with primer bulb to the RACOR filter and let it siphon into a 5-gallon jerry can. Never thought of buying a pump to replace gravity... JimP