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EFV-8 Club Forum / General Ford Discussion / 6v fuel pump

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Discussion Topic: 6v fuel pump -- page: 1 2

41fatty

03-25-2026 @ 7:49 AM

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41fatty

03-25-2026 @ 7:42 AM

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all stock

41fatty

03-25-2026 @ 7:00 AM

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more photos forthcomming( I hope)

TomO

03-24-2026 @ 12:21 PM

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41Fatty, If I understand your post correctly, your engine starts and idles fine after sitting for 30 minutes and when you put it in gear and try to drive it, it dies unless you operate the electric fuel pump. The car runs fine once you get over the initial stall.

Did this happen before you installed the electric pump or afterwards? Does this happen after sitting overnight? Do you need to use the electric pump to start the car after sitting overnight? Does the engine try to stall when you try to race it right after starting up or after letting it idle for about 2 minutes? Do your spark plug firing surfaces look black and sooty? Try pulling the choke out half way when starting out after the 30 min. shutdown. Check the color of your spark when idling after the 30 minute shutdown. It should be a blue or white color. Be careful of shocks, use an insulated pliers to remove the wire and hold it near a head nut.

I would like to see a couple of photos of your engine bay. One showing the left side of the engine, carburetor, fuel pump and connections. Another showing the distributor and coil. I would also like to see a photo of your electric pump installation.

I will be looking for your reply.

Tom

41fatty

03-22-2026 @ 12:20 PM

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So I removed the filter before my 6v pump, replaced the rubber fuel line with brass compression fittings, tested my relatively new correct rubber hose at the firewall/fuel pump. Clean gas tank, all new lines. Now I take the Coupe out for a nice Sunday drive and it runs amazing until I shut it down for about a half hour. It starts right up until crucial accel. and will stall right out if I don't momentary hit the 6v pump, and then good to go. I tried this drill again. After say, half hour, I'll startup , see bubbles in the glass fuel bowl. then they go away. So where can I possibly be sucking air?

wlobb

03-14-2026 @ 5:37 PM

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Oddly I’m having the same problem. I found the gasket between the pump and the housing for the push rod was mangled.

41fatty

03-14-2026 @ 11:13 AM

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the pump kit came with a fuel filter so i figured why not use it.i cant find any paperwork or instructions. I guess i can use this fuel pump constant if i Have to in line with my mechanical fuel pump? I hope i don't need some kind of regulator.( more fittings, more air leaks!)

woodiewagon46

03-14-2026 @ 11:04 AM

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Not only should you install a fuse in the electric fuel pump circuit, but also a safety relay to kill the pump in the event of a crash. There was an article about types of safety switches available in the July/August 1999 issue of the V-8 Times. The last thing you want is a fire with an electric fuel pump to continuously keep running feeding the fire.

TomO

03-13-2026 @ 2:54 PM

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The mechanical fuel pump needs an input that is free of air leaks. I had problems years ago when I had an electric pump and filter. I eliminated the pump and went to a solid line from the tank to the firewall and installed the filter between the steel line and the flex line. I had problems priming the carburetor, so I removed the filter and now my car starts and runs fine.

IMHO you do not need a filter unless your tank is very rusty. The screen at the top of the sediment bowl and the sediment bowl is sufficient to keep debris out of the carburetor.

Tom

carcrazy

03-13-2026 @ 2:09 PM

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Occasional stalling can be caused by an intermittent electrical connection in the primary circuit of the ignition system.

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