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#1605252 06/06/2026 4:10 PM
Joined: Apr 2025
Posts: 3
R
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R Offline
Joined: Apr 2025
Posts: 3
Is ther anyway an electric fuel pump can be installed on a 261 safety?
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fuel filter graph.pdf (228.29 KB, 16 downloads)

Joined: Feb 2000
Posts: 5,206
J
'Bolter
'Bolter
J Offline
Joined: Feb 2000
Posts: 5,206
Yes, but it will take a couple extra pieces. You will need a T fitting in the oil pressure line, a oil pressure safety switch, and a momentary push button. What you end up with is safety switch that only runs the pump once the engine has oil pressure, the momentary push button allows you to prime the fuel system before the oil pressure is built up. You never want an electric pump wired to a ON/OFF switch only. The safety switch is from a mid '70s Chevrolet Vega, there's likely others but the Vega switch is easy to find and works good.
https://www.oreillyauto.com/shop/b/...14322/automotive-car-1971-chevrolet-vega
If I'm remembering right, one terminal is normally closed and can used for the push button to send power to the pump, one terminal is normally open and goes to the pump, the third terminal is power feed to the pump

Most all the small pulse pumps can be plumbed inline with the mechanical pump and used as a primer pump, the mechanical pump will draw fuel through it when not running, this way you don't need the safety switch, only a momentary push button. This will be used to prime the carburetor, not for driving.

Here's one way to wire a pump, http://wallaceracing.com/electric-pump-wiring.html , this uses a relay so the fuel pump can be wired with much larger wire for a high amp electric pump. A relay is also used if the pump is way at the back of the car or truck, the high amps are run through dedicated wires while switching wires are smaller and run through the switches.

Joined: Feb 2020
Posts: 69
S
'Bolter
'Bolter
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Joined: Feb 2020
Posts: 69
I used a wifi programmable timer https://timers.shop/6V-28V-10-Amp-Timer-Wi-Fi-configurable-via-phone_p_44.html for the relay signal wire on my electric fuel pump so that it runs for 3 seconds when the key is turned and then waits for the pressure switch that Joe H mentioned to allow the pump to run continuously. Works great!


Mason

1947 Chevy 3100
-57 Chevy 235
-95 S10 T5 Transmission
-97 Blazer 3.42 Rear End
Joined: May 2015
Posts: 11,049
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Joined: May 2015
Posts: 11,049
Mason, that's an awesome find. thumbs_up
And the fact that it'll work down to 6V makes it pretty versatile. Somebody has invented a pretty cool mousetrap, and at a reasonable price, too. grin


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
Joined: Apr 2016
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M
'Bolter
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M Offline
Joined: Apr 2016
Posts: 1,042
I might run the mechanical fuel pump that runs off the back of my dry sump pump so it shuts off when the engine is not running. If I do I will run an electric fuel pump to prime my two 650 DP carbs on my 292.


Old enough to know better, too young to resist.

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