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Help Support Hardline Crawlers :
emergency trick for a bad fuel pump
- Thread starter patooyee
- Start date
TBItoy
Well-Known Member
Re: Re: Re:
Apparently old boat motors from the 50s used pressurized gas tanks to feed the carbs instead of fuel pumps. There are several write ups on line about converting them.
And those Coleman lanterns and stoves that use white gas use the little hand pump to pressurize the tank.
I haven't found anything online yet about anyone implementing it with efi though.
patooyee said:Guess i should add that pressuring the cell was an idea that nwflyj came up with a little while back during one of his hair brain storming sessions.
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Apparently old boat motors from the 50s used pressurized gas tanks to feed the carbs instead of fuel pumps. There are several write ups on line about converting them.
And those Coleman lanterns and stoves that use white gas use the little hand pump to pressurize the tank.
I haven't found anything online yet about anyone implementing it with efi though.
CCOR
706-559-9609
I did the same thing years ago when my fuel pump died on school bus at Tellico
grcthird
Birmingham, AL
RustyC said:Yeah what you said.
So say we have a fuel cell and all the plumbing to the engine. How can we pressurize the cell?
Obviously it will be air, co2, nitrogen. or Nitrous Oxide
So on board air, engine or elec. compressor? both can fail electrically and mechanically.
Pressurized gas cylinders? heavy and bulky.
Wonder how long a powertank would last.
hmm?
Bicycle pump! Put those young uns of yours to work!
RustyC
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Using an engine driven onboard air setup an air tank would be needed to allow the cell to be repressurized after refueling.
All kidding aside a schrader valve in the system to allow an external way to pressurize the the cell could be very benificial.
I think the best setup would be engine driven onboard air with a small ARB type electric compressor as a backup.
I argee that a bladder setup would be best. During refuel the pressure vented in only air and not gas fumes=boom!
All kidding aside a schrader valve in the system to allow an external way to pressurize the the cell could be very benificial.
I think the best setup would be engine driven onboard air with a small ARB type electric compressor as a backup.
I argee that a bladder setup would be best. During refuel the pressure vented in only air and not gas fumes=boom!
TBItoy
Well-Known Member
Re: Re: emergency trick for a bad fuel pump
So who wants to get ahold of a flexible air bladder and build a fuel cell for it?
Or vice versa.
So who wants to get ahold of a flexible air bladder and build a fuel cell for it?
Or vice versa.
xjkrawler
Well-Known Member
We used dads windshield washer bottle to run his Tj when his fuel pump died. Just ran the hose into his air filter tube and hit the lever on the column when the motor started to died. It was like hitting nitrous haha
Drove his jeep out of Sherwin Williams trail in the cove.
Doesn't burn the washer pump because most washer fluid has alcohol in it. Worked surprisingly well.
Drove his jeep out of Sherwin Williams trail in the cove.
Doesn't burn the washer pump because most washer fluid has alcohol in it. Worked surprisingly well.
TBItoy
Well-Known Member
Re: Re: Re: Re: emergency trick for a bad fuel pump
That's what I was thinking too. A proof of concept.
I wonder how long a small tire inner tube would hold up in gas? I have a new motor cycle tire tube that someone left at my shop.
Another issue I thought of is the possibility of the air bladder blocking/sealing off the gas outlet...? I'm sure that could be prevented with some simple baffling
patooyee said:
That's what I was thinking too. A proof of concept.
I wonder how long a small tire inner tube would hold up in gas? I have a new motor cycle tire tube that someone left at my shop.
Another issue I thought of is the possibility of the air bladder blocking/sealing off the gas outlet...? I'm sure that could be prevented with some simple baffling
RustyC
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The setup I am using on my lil buggy could be setup like we are talking very easily with just a little plumbing. The only difference is I would not have a bladder in the cell.
It sounds and is kinda ghetto but I am using a portable 11 gallon air tank converted to a fuel cell. Outlets are -6 jic welded to the cell and the filler neck uses pipe threads.
Technically I could plug my vent, block my return on a GM TBI setup and pressurize the tank to 13 psi.
The air tank is new and rated to 125 psi.
I am currently reassembling the buggy after paint so it would be a while before everything gets back together and I could test.
It sounds and is kinda ghetto but I am using a portable 11 gallon air tank converted to a fuel cell. Outlets are -6 jic welded to the cell and the filler neck uses pipe threads.
Technically I could plug my vent, block my return on a GM TBI setup and pressurize the tank to 13 psi.
The air tank is new and rated to 125 psi.
I am currently reassembling the buggy after paint so it would be a while before everything gets back together and I could test.
grcthird
Birmingham, AL
Try it, if it doesn't work come get the air tank in my shed and use it. It's the same size I think.
Most brake flush machines use a bladder as well, think of a small keg cut in half with a rubber bladder in the middle and bolted back together, brake fluid in one side, shop air in the other.
Most brake flush machines use a bladder as well, think of a small keg cut in half with a rubber bladder in the middle and bolted back together, brake fluid in one side, shop air in the other.
TBItoy
Well-Known Member
Re: Re: Re: emergency trick for a bad fuel pump
Sounds like that would work, do you have OBA or a co2 tank that you could hook up to it so you could drive it?
Not sure if you considered it from your posts, but an external regulated air supply would have up stay hooked up to keep the pressure constant as you use fuel.
RustyC said:
Sounds like that would work, do you have OBA or a co2 tank that you could hook up to it so you could drive it?
Not sure if you considered it from your posts, but an external regulated air supply would have up stay hooked up to keep the pressure constant as you use fuel.
