Author Topic: Electric Fuel pump for an emergency  (Read 579 times)

Offline Blues Power

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Electric Fuel pump for an emergency
« on: September 11, 2023, 03:00:46 PM »
If my mech pump goes bad can i splice in an electric pump to the inlet side of the existing pump with ground and a wire to the bat just to get me home.
or will i need a return line

at best i go about 25 miles from home. just looking to limp if possible

I can keep an spare mech pump in the trunk but will be hard to do road side on a hot motor and PS pump will need to come off (351C)

Offline krelboyne

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Re: Electric Fuel pump for an emergency
« Reply #1 on: September 11, 2023, 03:35:04 PM »
Maybe.
Electric pumps push liquids. Should be nearer to the fuel tank. Might get you home, but carburetor may be starving for fuel.
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Offline 69GT350H

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Re: Electric Fuel pump for an emergency
« Reply #2 on: September 11, 2023, 06:00:12 PM »
You would also want to get one with a low PSI rating so you do not push fuel past the carb inlet valve and flood the carb/engine. Most carburetors are designed to work best at fuel pressures between 5 and 7 psi.
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Offline jwc66k

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Re: Electric Fuel pump for an emergency
« Reply #3 on: September 11, 2023, 08:17:55 PM »
If you've gone this far, get an adjustable fuel pressure regulator. I used an electric fuel pump on my VW powered sand rail for years with a regulator. The engine originally was a 1600 CC 1971 case, modified with a 92MM bore kit and 82 MM stroke (1968cc = about 100 Ci) with a pair of 4DCN Weber carbs - plus other goodies.
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Offline Bossbill

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