electric fuel pump vapor locks on Ford V8 ? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 09-05-2005, 01:32 PM
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electric fuel pump vapor locks on Ford V8 ?

I recently put an electric fuel pump on my '64 to replace the mechanical one and I like it a lot better but from time to time it vapor locks on me and I have to crack the line to bleed it between the pump and the carb.

Is there anything I can do to permanently correct the problem or should I just keep a flat tip screw stick in the glove box ?


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Old 09-05-2005, 01:41 PM
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Where`s the pump mounted? if it`s under the hood it`ll keep on vapor locking, all electrics are suppose to be mounted by the tank within a foot from the bottom of the tank, there made to push not pull.
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Old 09-05-2005, 01:44 PM
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Quote:
Originally Posted by DoubleVision
Where`s the pump mounted? if it`s under the hood it`ll keep on vapor locking, all electrics are suppose to be mounted by the tank within a foot from the bottom of the tank, there made to push not pull.
************

He's right.... Put it at the tank.
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Old 09-06-2005, 05:59 PM
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I mounted it on the driver's fenderwell above the horns !!!

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Old 09-06-2005, 08:38 PM
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The Holley red pump works better mounted close to the carb. It is internally regulated.
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Old 09-06-2005, 08:48 PM
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I just bought a Holley Red pump.....The directions from Holley said to mount close to the fuel tank and preferably below it.
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Old 09-07-2005, 07:03 AM
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Info; http://www.izook.com/tech/samurai/en...p/fuelpump.htm
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Old 04-02-2006, 08:32 PM
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Alright guys ! I got the thing moved within a foot of the tank, fired it up, it ran like a champ but then the fuel pump "kinda" died.

I bled it once, it ran for about five minutes, bled it again, it ran for about three minutes and died.

The pump was still humming but it wasn't pumping anything.

I dropped it once before I re-installed it plus it's six years old - cause of death old age/abuse ?

THANKS YA'LL !!!!
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Old 04-02-2006, 09:49 PM
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I imagine there's an internal rubber baffle or sealing baffle inside the pump that probably dry rotted after sitting for six years. One pinhole in a pump diaphragm and it's DOA babee!
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Old 04-03-2006, 09:17 AM
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Electric fuel pumps are designed to push fuel, and should always be mounted as close to the fuel soruce as possible.
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