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post #1 of (permalink) Old 04-09-2002, 12:48 PM Thread Starter
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CJ Electric Fuel Pump

Has anybody installed an electric fuel pump to replace the stock pumper on the 258? If so what type (make/model)? Are there any issues to deal with? Is this a good idea?
Any input greatly appreciated. '84 CJ7 258

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post #2 of (permalink) Old 04-09-2002, 12:58 PM
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Re: CJ Electric Fuel Pump

If you have a return line to the tank, all you have to do is install the pump in the supply line and bypass the stock pump. On the V8 CJs the fuel filter is between the pump and carb and has two outlets, one for the carb and a smaller on for the return line. You will want to also install a fuel filter before the pump. Then just wire it to a switched ignition source with a fuse inline.
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post #3 of (permalink) Old 04-09-2002, 02:54 PM
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Re: CJ Electric Fuel Pump

You might also want a fuel pressure regulator...
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post #4 of (permalink) Old 04-09-2002, 03:42 PM
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Re: CJ Electric Fuel Pump

I installed a holley electric pump on my 258 with a weber carb. It did help with the starting as I had trouble keeping gas to the carb. I also installed a oil pressure sensor/relay to turn the fuel pump on/off only if their is a minimum oil pressure. The reason for the pressure is that with an electric pump and you accidently put your wheels above your head and the key remains on, it will continue to pump gas. With the oil pressure sensor it stops pumping when the motor shuts down. Also installed a filter before the electric pump as they tend to easily fail when unfilter, dirty gas is run through them.

I will have the holley for sale shortly as I am switching to a MPI and will need a different-high pressure pump. If interested, let me know and we can talk.
post #5 of (permalink) Old 04-09-2002, 04:28 PM
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Re: CJ Electric Fuel Pump

If you do hook the pump through an oil pressure switch, it would be a good idea to have another switched circuit that you can use to fill the float bowl prior to starting the engine. If it sits for a week or so, the fuel bowl will probably be empty.
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