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Electric fuel pump on a 75 Dodge 440? |
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DougG
Orange Level Joined: 20 Sep 2009 Location: Mo Points: 7936 |
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Posted: 29 Jun 2020 at 11:54am |
Wanting to put an electric gas pump on my 75 Dodge 200 with a 440 and 4 brl Carter -Tottally by passing the mechanical- do I need to add a return any where? Ill wire it to come on with the switch at starting , what happens to the gas when the bowls fill up and are full without the engine running? New ones are set up for this but not my 75 ,
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DMiller
Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 29235 |
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Always wire it in on IGN ON Side NOT full time battery power, next only buy one that delivers up to the 5-6psi that standard manual pumps put out. Those stated when turn off key pump does not remain running nor should it ever unless engine is running continue to run or fill carb bowls.
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77241 |
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YEP... if it only puts out 5 psi, then its just like the mechanical pump supplying the carb... The float needle will dead head the flow as needed into the carb...no return line... Power off the switch like Dave said.
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Like them all, but love the "B"s.
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PaulB
Orange Level Joined: 12 Sep 2009 Location: Rocky Ridge Md Points: 4384 |
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It would be wise to power it from an oil pressure switch for safety's sake. Powering a fuel pump directly from the ignition would keep the pump running in the event of any collision and possibly pumping gas everywhere. A push button wired in would allow for priming.
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If it was fun to pull in LOW gear, I could have a John Deere.
If you can't make it GO... make it SHINY |
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ac fleet
Orange Level Joined: 12 Jan 2014 Location: Arrowsmith, ILL Points: 2187 |
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The pumps have internal regulators and work fine---I have had several of them over the years. ----For your big engine---be sure to get one with the right GPM! ----too low and you will go no where! lol! They come in all sizes as to gpm's.
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http://machinebuildersnetwork.com/
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DMiller
Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 29235 |
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To add a oil pressure switch need to add a Cranking Bypass wire or a timed start relay as GMs have.
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shameless dude
Orange Level Joined: 10 Apr 2017 Location: east NE Points: 13611 |
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all of them i've ever had...clicked real fast until the pressure was built up, then only heard slow clicking. have had them on both gas and diesel. don't remember the GPM pump i had on my 360.
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