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07-29-2018, 01:32 PM | #21 |
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Join Date: May 2010
Location: Oregon
Posts: 1,287
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Re: Reason for electric fp at rear
No. There is such a thing as a magnetohydrodynamic pump. But that requires an electrically conductive fluid, which gasoline should not be. https://en.wikipedia.org/wiki/Magnetohydrodynamic_drive. |
07-29-2018, 06:27 PM | #22 |
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Join Date: May 2010
Posts: 2,173
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Re: Reason for electric fp at rear
>>>rubber fuel line on either side of the pump>>>
Rubber fuel tubing should be avoided on pump's pressure side if possible. On single line supply, safest is shortest pressure-side line as possible using all-metal flared tubing/fittings. Jack E/NJ |
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07-29-2018, 07:39 PM | #23 |
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Location: Daytona Beach, Fl & Spencer, W. Va,
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Re: Reason for electric fp at rear
If a person does not want to rely on an electric pump, but wants to have one in case their mechanical one goes out, or use it to prime the carb, supplement the old mechanical unit, etc... a check valve can be used!
A check valve only allows the fuel to travel in one direction. In the picture, it is situated to only allow the fuel to travel towards the engine. Therefore, when the electric pump is turned on, it doesn't just push the fuel back to the tank. When the electric pump is turned off, the mechanical pump can draw the fuel around the electric one. The bold areas where the lines split are simple tees. Clever, eh? Oh, Google 'check valve gasoline' and you will find plenty. They're also cheap. Good Luck!
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Mike Jr. here. I get on here every few months to check messages, and look through his almost 500 saved messages for information on the '29 and '34 I still have. A lot of very nice people on here. He truly enjoyed Ford Barn. |
07-30-2018, 07:26 AM | #24 | |
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Re: Reason for electric fp at rear
Quote:
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John "Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein |
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07-30-2018, 08:13 AM | #25 | |
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Location: Daytona Beach, Fl & Spencer, W. Va,
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Re: Reason for electric fp at rear
Quote:
Engine driven (suction) pumps can only draw liquid fuel. If there is a big pocked of vapor in the line, they stop functioning, and are 'vapor locked'. Engine driven (mechanical) pumps need to be at the 'engine'. Electric pumps are free to be placed anywhere, and the most effective/efficient place to put them is near the tank.
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Mike Jr. here. I get on here every few months to check messages, and look through his almost 500 saved messages for information on the '29 and '34 I still have. A lot of very nice people on here. He truly enjoyed Ford Barn. Last edited by FL&WVMIKE; 07-30-2018 at 08:25 AM. |
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07-30-2018, 09:08 AM | #26 |
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Re: Reason for electric fp at rear
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John "Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein |
08-25-2018, 04:56 AM | #27 | |
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Join Date: Aug 2012
Location: Leicester. UK
Posts: 404
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Re: Reason for electric fp at rear
Quote:
would it work if you just put a check valve between the original Ford pump and the carb? Then the fuel never drains back, and there would not be a problem with the old mech pump running dry? Seems alot simpler than all these elecric pump solutions, or what am I missing? Cheers, Tom. |
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08-25-2018, 10:31 AM | #28 | |
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Location: Daytona Beach, Fl & Spencer, W. Va,
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Re: Reason for electric fp at rear
Quote:
With a Holley, you can pour some gas down the bowl vents to fill up the bowls. Might be able to do that on a flathead as well. Never tried. My diagram was if a person wanted to mount an electric pump at the rear, but didn't want to rely on running it all the time. The check valve just kept it from pumping the fuel right back to the tank... so it turns into an 'optional' electric pump, that can also be used to prime the carb, or come into use when a mechanical pump goes out, driving down the road. When we would take these old cars on long trips in the 1970's when I was a kid, we traveled from WV to Hershey, Charlotte, and all over the places. My parents even took the '35 to Vermont when I was a baby. Dad packed tools and spare parts for any long trip, and more often than not, we would end up having to fix something. lol On the V8's it was usually fuel pumps... sometimes the generator. For the Model A, it was usually a leaky water pump. The 'box' in the floor of the back seat of the '34 contained basic tools, an extra fuel pump, generator, distributor and water pump. At least, that's what I can remember. The auxiliary electric fuel pump would have saved some time beside the road, changing out fuel pumps. lol
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Mike Jr. here. I get on here every few months to check messages, and look through his almost 500 saved messages for information on the '29 and '34 I still have. A lot of very nice people on here. He truly enjoyed Ford Barn. |
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