The Ford Barn

Digger · 10-30-2022, 05:54 PM

So both my cars have an electric pump on it, used to prime when starting. So my question is if you left the electric pump on, can it “push through” the stock pump and end up giving the carb too much fuel/pressure?

Ken/Alabama · 10-30-2022, 06:12 PM

Been running mine like that for years. It’ll push through the mechanical pump and it won’t increase the pressure.

Lawson Cox · 10-30-2022, 06:15 PM

[QUOTE=Ken/Alabama;2177735]Been running mine like that for years. It’ll push through the mechanical pump and it won’t increase the pressure.

Say what???

Digger · 10-30-2022, 07:20 PM

So I crawled under the car and interesting set up it’s the electric fuel pump, and then behind it is a fuel gauge regulator, it was set at five psi, I turned it down to four, but then disconnected it completely, and the car starts up instantly no issues. So maybe I should just set it at 2 1/2 pounds and let it go? Any suggestions appreciated see photo. Or do a on/off switch at the dash.

Lawson Cox · 10-30-2022, 09:00 PM

The regulator is between the tank and fuel pump ???? That's what it looks like in he photo. That's weird.

38 coupe · 10-30-2022, 09:10 PM

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On/off switch at the dashboard, or my preference of no electric pump at all.

Digger · 10-30-2022, 09:34 PM

Regulator is between the electric pump and The mechanical pump

tobby · 10-30-2022, 10:52 PM

a good stock fuel pump is ok for most applications, i use an electric pump mounted near the fuel tank wired to a spring loaded momentary switch, so it will not be left on, for priming the carburetor if the car sits for long periods

Robert/Texas · 10-31-2022, 06:35 AM

I bought my ’34 roadster in 1995. It came with an original style fuel pump and a very heavy piston type electric fuel pump mounted behind the driver side hood panel close to the frame with an immediate switch located on the lip at the bottom of the dashboard. It also had a variable style pressure regulator mounted on the intake manifold close to the carburetor. I assume that the previous owner did not want to separate the fuel and fuel gauge tubes. The car had an 8-volt battery, and the electric pump went south soon after I bought the car. I replaced this with a 6-volt battery and a new light weight electric pump. I also replaced the immediate toggle switch with a tiny nearly invisible black colored switch.
Some years later the regulator failed, and I never replaced it. The car now has a fuel pump rebuilt by CharlieNY and I don’t feel that it needs a regulator as I never smell any gas and the is running like new.

Terry,OH · 10-31-2022, 07:52 AM

I don't believe the numbers on the regulator correspond with the output pressure. When you get your vacuum gauge it most likely can also do fuel pump pressure. Don't continue to make adjustments until you get the Carb idle mixture adjusted.

tubman · 10-31-2022, 08:39 AM

After I had a few years experience with these cars and had some idea of what actually is going on, I set my car up correctly, scrapped the electric fuel pump, and have never regretted it.

Robert/Texas · 10-31-2022, 09:15 AM

I don't need the electric fuel pump on my '34 unless it hasn't been driven for a month or so. My '37 doesn't have one and when it hasn't been driven for a while I need to use starter fluid to start it. This is a pain when I'm alone.

Kube · 10-31-2022, 09:35 AM

Quote:

Originally Posted by tubman

After I had a few years experience with these cars and had some idea of what actually is going on, I set my car up correctly, scrapped the electric fuel pump, and have never regretted it.

Bingo!

rotorwrench · 11-01-2022, 11:48 AM

Automobiles, like any other motorized vehicle, do not like to set too long. The military got me used to the 14 day MOC or maintenance operational check. Much longer than that and the vehicle should be prepped for storage. With the funky modern fuels we have and the price of batteries, I would strongly recommend running then every two weeks. In the winter, they should be drained of fuel and the battery removed for periodic charging. Also make sure the coolant is up to low temperatures or drain it.

10-30-2022, 05:54 PM	#1
Digger Senior Member Join Date: May 2010 Location: Pacific Grove, CA Posts: 1,211	Question about stock ‘34 fuel pump and electric pump So both my cars have an electric pump on it, used to prime when starting. So my question is if you left the electric pump on, can it “push through” the stock pump and end up giving the carb too much fuel/pressure?

10-30-2022, 06:12 PM	#2
Ken/Alabama Senior Member Join Date: May 2010 Location: Alabama Posts: 3,261	Re: Question about stock ‘34 fuel pump and electric pump Been running mine like that for years. It’ll push through the mechanical pump and it won’t increase the pressure.

10-30-2022, 06:15 PM	#3
Lawson Cox Senior Member Join Date: May 2010 Location: Above the gnat line in Georgia Posts: 7,009	Re: Question about stock ‘34 fuel pump and electric pump [QUOTE=Ken/Alabama;2177735]Been running mine like that for years. It’ll push through the mechanical pump and it won’t increase the pressure. Say what??? __________________ Life is like a roll of toilet paper. The closer to the end, the faster it goes. It is better to be seen, than viewed. "We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm".

10-30-2022, 09:00 PM	#5
Lawson Cox Senior Member Join Date: May 2010 Location: Above the gnat line in Georgia Posts: 7,009	Re: Question about stock ‘34 fuel pump and electric pump The regulator is between the tank and fuel pump ???? That's what it looks like in he photo. That's weird. __________________ Life is like a roll of toilet paper. The closer to the end, the faster it goes. It is better to be seen, than viewed. "We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm".

10-30-2022, 09:10 PM	#6
38 coupe Senior Member Join Date: May 2010 Location: South Texas Posts: 1,631	Re: Question about stock ‘34 fuel pump and electric pump Sponsored Links (Register now to hide all advertisements) On/off switch at the dashboard, or my preference of no electric pump at all.

10-30-2022, 09:34 PM	#7
Digger Senior Member Join Date: May 2010 Location: Pacific Grove, CA Posts: 1,211	Re: Question about stock ‘34 fuel pump and electric pump Regulator is between the electric pump and The mechanical pump

10-30-2022, 10:52 PM	#8
tobby Member Join Date: Jun 2010 Posts: 47	Re: Question about stock ‘34 fuel pump and electric pump a good stock fuel pump is ok for most applications, i use an electric pump mounted near the fuel tank wired to a spring loaded momentary switch, so it will not be left on, for priming the carburetor if the car sits for long periods

10-31-2022, 06:35 AM	#9
Robert/Texas Senior Member Join Date: May 2010 Location: Burton, Texas Posts: 681	Re: Question about stock ‘34 fuel pump and electric pump I bought my ’34 roadster in 1995. It came with an original style fuel pump and a very heavy piston type electric fuel pump mounted behind the driver side hood panel close to the frame with an immediate switch located on the lip at the bottom of the dashboard. It also had a variable style pressure regulator mounted on the intake manifold close to the carburetor. I assume that the previous owner did not want to separate the fuel and fuel gauge tubes. The car had an 8-volt battery, and the electric pump went south soon after I bought the car. I replaced this with a 6-volt battery and a new light weight electric pump. I also replaced the immediate toggle switch with a tiny nearly invisible black colored switch. Some years later the regulator failed, and I never replaced it. The car now has a fuel pump rebuilt by CharlieNY and I don’t feel that it needs a regulator as I never smell any gas and the is running like new.

10-31-2022, 07:52 AM	#10
Terry,OH Senior Member Join Date: May 2010 Posts: 4,751	Re: Question about stock ‘34 fuel pump and electric pump I don't believe the numbers on the regulator correspond with the output pressure. When you get your vacuum gauge it most likely can also do fuel pump pressure. Don't continue to make adjustments until you get the Carb idle mixture adjusted.

10-31-2022, 08:39 AM	#11
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,320	Re: Question about stock ‘34 fuel pump and electric pump After I had a few years experience with these cars and had some idea of what actually is going on, I set my car up correctly, scrapped the electric fuel pump, and have never regretted it.

10-31-2022, 09:15 AM	#12
Robert/Texas Senior Member Join Date: May 2010 Location: Burton, Texas Posts: 681	Re: Question about stock ‘34 fuel pump and electric pump I don't need the electric fuel pump on my '34 unless it hasn't been driven for a month or so. My '37 doesn't have one and when it hasn't been driven for a while I need to use starter fluid to start it. This is a pain when I'm alone.

11-01-2022, 11:48 AM	#14
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,440	Re: Question about stock ‘34 fuel pump and electric pump Automobiles, like any other motorized vehicle, do not like to set too long. The military got me used to the 14 day MOC or maintenance operational check. Much longer than that and the vehicle should be prepped for storage. With the funky modern fuels we have and the price of batteries, I would strongly recommend running then every two weeks. In the winter, they should be drained of fuel and the battery removed for periodic charging. Also make sure the coolant is up to low temperatures or drain it.