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Fuel transfer by repurposing auto inline electric fuel pump

ihrescue

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Dec 30, 2013
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Olney, MD
Hi Folks:

I wanted to bounce an idea off you all. I keep 25 gallons of gasoline at home to run a generator during power failures and have enough for about two days use. As you all know there are some logistical details needed such as keeping fresh fuel, fuel transfer and safe and efficient fuel storage.

For storage I bought some good quality 5 gallon cans and generally transfer by pouring from the five gallon tank to the generator is not a problem. But to keep fuel fresh I try to use it in my other power tools or transfer it to my cars once a year. But 25 gallons of fuel goes a long way. I use Marine Stabil to help manage any moisture. I have found that a portable pump to transfer fuel is desirable.

I have found it is a pain in the **** to pour fuel from a tank into a vehicle if you have a number of gallons to transfer. You have to hold the tag high and it needs to go slow to avoid spilling. To make it easier for the fuel can to vehicle transfer and also for \generator to fuel can transfer (I don't keep fuel in my generator fuel tank) I have been using those cheap $20 all plastic pumps that use 2 - D size batteries. The problem has been these pumps are not reliable or durable. The batteries are at the top where the pump and power switch and is top heavy so if you unintentionally drop it, it goes switch first into the concrete or asphalt and the not so robust switch immediately becomes non functioning. Tell you the truth I am tired of replacing switches (I know I should avoid dropping the thing in the first place). These pumps don't last long and I have probably been through 5 pumps to the tune of a hundred bucks.

I am thinking that I could repurpose an auto inline electric fuel pump and power it with a 12 volt battery. I would design it to make it secure and mainly use fuel line as long as needed for intake and output. It probably would not need more than a 36" in take and output line to make it work. All fuel transfer is outdoors, I could ground the system if you all think that would make things safer. I also keep a fire extinguisher readily available. I wanted to see if you all could identify arguments against a system like this. Thanks for any reactions you can offer.
 
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larry_g

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oregon
I would suggest that you google 'fuel transfer pump" and see what is already on the market. I think that you will find that most automotive fuel pumps are low volume and higher pressure, just the opposite of what you want.

lg
no neat sig line
 

rsanter

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visalia ca
Nothing wrong with this.

Another option. Not sure they are still available but I remember there used to be a fuel/liquid transfer pump available that was powered by an drill (can use cordless).
The benefit I see in this is lighter than a car battery and as you get close to full you can slow the speed of the drill
 

nadogail

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Jan 23, 2009
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Coronado, CA
I have also had this idea, but never got beyond wondering about it. I guess I should ask a Fuel Pump manufacturer.
 

NUTTSGT

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Northern Central Ohio
I used a 88lph pump from a Mustang for a while. Then I upgraded to a used Holley blue pump with a short section of rubber hose to a section of brake line. The brake line went inside the 55gallon drum. I only used it to fill fuel jugs for the track.


My power source was a Campbell Hausfield rechargeable air compressor with a 12V output.
 

rlitman

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Long Island
Nothing wrong with this.

Another option. Not sure they are still available but I remember there used to be a fuel/liquid transfer pump available that was powered by an drill (can use cordless).
The benefit I see in this is lighter than a car battery and as you get close to full you can slow the speed of the drill

I don't know of any drill pumps that are safe to use with gasoline.

A 12V inline fuel pump may only flow in the low gallons per hour range. It's going to take a LONG time to empty your 5 gallon pail. My Type II metal safety cans empty in well under 2 minutes, but yes, holding them up and slowly turning them upside down is indeed a pain in the ***. I wish I had a better solution, but I'm not aware of one.

There are small battery powered pumps made to go in gas cans. Maybe that would work for you.
 

Bigblockyeti

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A fuel pump would work but the important thing is grounding, grounding, grounding. Whatever switch you use should be a good distance from the fuel pump so if something goes awry, you can shut it down safely. Many fuel transfer pumps are not rated for solvents like gasoline and won't last very long. A proper gasoline fuel pump should last thousands of times longer than the pumps you've been using. A quick search on summit looks like most are between 90-120gph so you'll get 1.5-2 gallons per minute as you wait, many proper gasoline transfer pumps can get at least 5 times that volume but at greater expense, size and current draw. If you're patient and everything is wired and plumbed safely, it sounds like it would be a real back saver.
 
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ihrescue

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Olney, MD
Thank you all for your comments. You have given me some good things to think about and I greatly appreciate it. Heck I may just be smarter to spend money on a good hydraulic elevating assembly table on wheels that will support my 5 gallon fuel tanks at a proper level. I see Harbor Freight has a 500 lb capacity hydraulic table cart for $179.

Mike Love
 
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ihrescue

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I also see that marine suppliers have a pump like someone mentioned in comments that goes on any size fuel tank and with 4 AA batteries pumps 3 GPM? Comments are good and the price is around $55. 35" output hose with a nozzle and auto shutoff. TeraPump is the manufacturer in South Korea. Promising.

Mike Love
 

Bigblockyeti

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Another option I've considered is a boat gas tank of between 25-35 gallons that I could fill then slide from my truck bed and onto a platform then gravity feed into cans as needed.
 

Vintage Veloce

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71bBMiaf--L._AC_SL800_.jpg

I have a hand pump / siphon I have used occasionally for years (maybe once or twice a year). If the source tank is above the destination tank, you just pump a couple times and then the siphon starts and it goes pretty quickly because of the large tubing.
https://www.amazon.com/dp/B00JGX2H2Q/?tag=atomicindus08-20
 

On-Wheel

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Any time my power goes out the gas stations are still open.

I use a $10 12volt fuel pump with pvc clear line like above picture.

Pumps are on eBay .I run 2 of them in-line on my truck.I fill aux tank and pump through 3 filters to main tank.Diesel is dirty.
 
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walta

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Jan 13, 2017
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Dutzow Missouri
I have similar problems with 15 gallons.

When I think about the home made repurposed possibilities. My mind asks, what is the worst thing that could go wrong? Would death be preferable to weeks in the burn unit and years of rehab? After thinking about hospital bills and co pays 3 or 4 hundred dollars for an engineered and tested pump starts to sound like a bargain.

This looks interesting for $165

https://www.zoro.com/fill-rite-fuel-transfer-pump-15-hp-10-gpm-fr1614/i/G3063557/?recommended=true

This style pump stays attached to the can and not top heavy and can be found on aliexpress for 1/2 as much. All the Chinese listings say diesel only no gasoline. The US listing for what looks like the same pump do not but never use the word gasoline.
https://www.amazon.com/dp/B01IWCP7XC/?tag=atomicindus08-20

https://www.aliexpress.com/item/327...earchweb0_0,searchweb201602_,searchweb201603_

Walta
 
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mcj115

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Hershey PA
I use a jiggle siphon pump to transfer fuel. These are cheap and require no maintaince . All you need is the fuel can to he higher than the tank you are draining into.
 

like2wheel

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Oct 29, 2014
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On an as needed basis
I have a 30ish year old store bought fuel transfer pump that's nothing more than an old thumper electric fuel pump fitted with hose barbs, 10' of cord with a cigarette lighter plug & an inline twirly on-off switch.
I use it occasionally, & it's not painfully slow.

I seem to remember electric fuel pumps for carburetor cars in the 72 gph range.
 

jimindm

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Oct 29, 2011
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Des Moines, Iowa
I use a frame mounted electric fuel pump. I use it to drain fuel tanks when doing a fuel pump. Handling an empty tank is so much easier.

Have no idea what kind of GPM it is rated for, but I can fill a 15 gallon barrel with ease.

My set up is sort of like above, with out the switch. Just ten feet or so of wire with a cigarette adapter that I plug into my jump pack.

While I do not have to worry about overfilling a tank, I would think you could put a valve on the hose to stop flow when needed. The pump should have some sort of bypass in it. In the actual application a vehicle would change fuel needs as it is driven.

I would think it would be fine to shut the flow off long enough to walk over to unplug it.

I think I would be more concerned storing gas that long. I have read where gas goes bad in just a month. I do not know about that. I usually cycle mine out about every 60-90 days.

Treating the fuel is one thing, but that does not change the formulation of the fuel itself. I would guess you are using non ethanol fuel. Formulations of the fuel itself constantly changes.

It may run, but I would not want to be running fuel I bought in the dead of summer heat, in a cold blast during the winter.
 

matt_i

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SE Michigan
If you recall old Ag or construction site gas tanks (possibly diesel) round tanks on an A-frame....I can tell you the cheapest/simplest setup has already been figured out. I think if you change your thinking to use gravity it will be simplest and easiest.

So how about this setup.

Find/buy/fabricate a metal tank capable of 25+ gallons. A marine tank was mentioned and would work. Place it high and commit to lugging the 5 gallon cans up a ladder or set of stairs and fill the 25+ gallon reservoir. Fuel stays in the 25 gallon place. I think you could also condition the air intake with a dessicant pack to help reduce moisture issues. Fuel rated hose with a ball valve and a nozzle/******.

So you decide its time to run the generator, remove it 5 gallons at a time thru your portable tanks.

So you decide its time to change out the fuel, back up your truck, tractor, etc and fill it.

I don't consider the physical work of raising some 5 gallons tanks up once a year to be a limitation but that's the thing to consider.

I looked into gas transfer pumps a long time ago and my conclusion was that 95% of them are only rated for diesel and a true gasoline pump that could be relied upon for a number of years was going to be quite expensive.
 

Leaflessshadetree

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Don't ask.
I just place the can higher than the filler on the vehicle and use a hose to siphon it.
Takes a few minutes, then I pour the last quart or so in using the spout.

I have considered attaching a hose to a spout that attaches to the cans. Then I'd just have to tilt the can on end and open the vent.
 
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ihrescue

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Dec 30, 2013
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276
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Olney, MD
Any time my power goes out the gas stations are still open.

I use a $10 12volt fuel pump with pvc clear line like above picture.

Pumps are on eBay .I run 2 of them in-line on my truck.I fill aux tank and pump through 3 filters to main tank.Diesel is dirty.


I went to the 25 gallon supply because we have had a couple of storms in the last 10 years where power outages were widespread due to significant damage to the power grids and if gas stations were open there were hours long lines. Most of the time yes it is just a couple of hours of power outage. Yesterday I got everything set up and the power was restored. But it was a good exercise of all the components.

Mike Love
 

gnpenning

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I have more questions than answers.
This is a Amazon screenshot. I've have both hand and the 12v versions, you can also get them with a rotary hand crank as well. The ones pictured should do gas and diesel. The volume you are doing you will never wear them out. You can also buy rebuild kits. I have one I got a rebuild kit for just because of heavy use not from any issues didn't show any wear upon disassemble. New parts did make any noticable change in fill rate. I have a meter in that pump, so easy to see volume being pumped. That pump has ran well over 50,000 gallons in red dye fuel.

For your use one of the hand pumps on a larger tank would work great. 5 gallon cans not so much.
 

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sweetk30

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finger lakes area upstate ,ny
been using my bendix / fascet pump for years . its 3 min per gal free flow i tested my self on 3/8" line .

i just did 55 gal of kero in to a barrel and its just clicked right along just fine the whole time . i use it for all sorts of fuel moving needs . and its got a magnet inside and cleanable filter screen .

same pumps for EVER just different stickers or plating color .

dont get a tiny square cube tho . they take almost 13 min per gal free flow rate .
 

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