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Electric fuel pump

OregonJeep

OregonJeep

New Member
Got stranded once due to fuel pump. Replaced with double action from KW. Don't reallly trust it. Bought electric pump as backup to carry in toolbox. Thinking if necessary, undo lines and sort of plug n play the electric one to get me home. Alligator clips to battery and rubber jump fuel lines in and out. Sound reasonable and doable? 1965 F-134. Thanks for thoughts!
 
I have a new, untested, in line, 12 volt fuel pump. I got from Azon or somewhere 3-4 years ago. It is a low pressure pump (about 3-4 psi) Was fairly cheap as I recall. Let us know how your trial hookup works out.
 
I’ve not had much luck with electric fuel pumps after I switched to the fuel cell in the bed, as the electric pump had to lift the fuel out of the tank before it would push to the motor. On a gravity fed tank electric pumps work better. After my 5th electric pump failed, I switched back to a mechanical pump, and carry a spare mechanical pump in the Jeep just in case I have a failure…
 
The 48 I bought last year has an inline electric pump with a toggle switch on the dash. Most of the time it is turned off and the Jeep runs off the mechanical pump. I have used it once to prime the system after the Jeep had sat for a while, but it also is a backup should the mechanical pump ever fail. I don't know what brand of pump it is, looks like it has been there a long while.
 
Oldpappy said:
The 48 I bought last year has an inline electric pump with a toggle switch on the dash. Most of the time it is turned off and the Jeep runs off the mechanical pump. I have used it once to prime the system after the Jeep had sat for a while, but it also is a backup should the mechanical pump ever fail. I don't know what brand of pump it is, looks like it has been there a long while.
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Can a mechanical pump pull through an electric pump adequately?
 
One of the key things to remember about an electric pump is they are pushers not suckers. SO you have to mount them as close to the bottom of the tank as possible. On a CJ mounting the pump on the back side of the Riser in the floor with the inlet to the pump below the bottom of the tank works best. You should also never install an electric pump without having an Oil pressure safety switch. So if the engine is not in start mode or running the pump will not run. In case of a roll over or other accident the pump can't just pump fuel while the engine is not running. Holley has an excellent easy to follow set of instructions on line.

I personally run a Holley Red 7psi electric mounted on the back side of the Riser in my 2A the top of the pump pointing down with the inlet just below the edge of the Riser. I have a 40 micron servicable filter between the tank and the pump then -6AN fittings and Braided hose to a 10 Micron servicable filter and the Holley 1-4 PSI pressure regulator set to 2.5 psi for my Weber carb. This setup has served me extremely well for 12000 miles so far. I run only 87 octane E-10 in my jeep.
 
OregonJeep said:
Got stranded once due to fuel pump. Replaced with double action from KW. Don't reallly trust it. Bought electric pump as backup to carry in toolbox. Thinking if necessary, undo lines and sort of plug n play the electric one to get me home. Alligator clips to battery and rubber jump fuel lines in and out. Sound reasonable and doable? 1965 F-134. Thanks for thoughts!
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I switched to a mechanical pump and instead of removing the electric pump, I just capped the ends and carry some hose in my toolbox.
 
I did the same ole pappy did. I placed an electric fuel pump along the frame rail near the fuel tank (rear mounted). I don’t use my jeep very often and I was burning up the starter trying to get fuel to the carb when it sat for weeks. Now I get in, hit the toggle switch for the electric pump, listen for it to hit the carb, and hit the starter. It starts right up now. Shut the electric pump off and it runs on the mechanical just fine. Now I have the electric pump in case the mechanical craps out. Well worth the afternoon to throw it in.
 
A few years ago I got stuck on a hard, local jeep track up on the side of a mountain because my fuel pump failed. I had to hike out 8 miles for cell service. Fortunately it was mid week and not a well known trail because I was blocking the trail. I went to my local FLAPS, picked up an electric pump and hiked back up there to retrieve the thing a day later.

I still run a mechanical pump but I now have it set up for a quick change out, spare electric pump. A fuel pump is a silly reason to get stranded. So lesson learned.
 
Timgr's comment reminded me of a hunting trip I went on with my father and his friends about 60 years ago. They used an old truck to haul camp gear, and fire wood. The fuel pump quit way out in the back country. My father rigged up a gravity feed with a big can, with a piece of hose he somehow fitted in the bottom of the can and sealed it with something. The can was strapped to something on the firewall, with the hose going to the carburetor. It ran out of gas a couple times on the way out of the mountains, and someone would siphon more from the tank to get it going again.
 
timgr said:
Note that a carbureted vehicle will run on the siphon pressure from a can sitting on the cowl.
If you have a length of hose and a gas can, you don't need a spare fuel pump.
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LOL. I did this 40 years ago coming home to Idaho from California when my fuel pump failed just after Tahoe. My wife didn’t think it would work. It looked dorky but we made it home…and stopped at every gas station.
 
Got some wire to go to the battery, flexible fuel hose to patch in the electric pump. Set it all up today, seems to work fine in emergency situations. Didn't run gas through, but I think it'll get me home! Thanks for all the support!
 
My electric pump was on the frame before my tbi swap. If it is removable Make sure you have extra hose clamps and plug both ends of the hose for the electric pump. Keep it all bagged and in a tightly packed spare parts box
 
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