Electric/Manual fuel pump

[Extreme_Fabrication]

So, we bought my wife a 84 GMC Jimmy. Has a electric fuel pump that is on as soon as you turn key on. I dont like it. I am afraid it is pumping to much fuel to carb. It does have a regulator and gauge, but gauge not working. By looks of it is just a cheapy off the shelf. While it running I can smell the fuel at engine. Motor idles ok, but when you give it throttle, it sounds as if it is loading up.
My question: Do I keep the electric fuel pump or go back to stock style fuel pump? So in future pump isnt pumping to much fuel or run battery down.

What are some you your suggestions or comments on both style fuel pumps?

 

[K85 Octane]

Go back to mechanical. Don't even bother with whatever clusterf*** fuel system the PO did. Just get a basic factory replacement unit.

 

[dyeager535]

Agreed. And if you can do it, replace whatever lines were cut/spliced with stock pieces if they are metal.

I know it's possible to use rubber properly to join lines, but the fact is, vehicles don't normally burn because the OEM did something wrong. It's normally caused by the owner monkeying with it, and not doing it properly. Plenty of people use rubber to connect, and have no issues, but not all get that lucky. You can find instances of burned vehicles here if you search.

Don't ask me though, I've only almost caught my car on fire with a burst rubber transmission line I installed in place of factory metal. lol

 

[diesel4me]

I was rather disturbed to find the previous owner of my Suburban had "converted it to run on bio-diesel,but never did use any"--his "conversion" consisted of cutting an access hole in the floor so you can pull the sending unit out without dropping the tank (that was fine by me!)--.

But the rest of his "conversion" consisted of an electric fuel pump bolted to the frame rail on the outside,right behind the right rear spring shackle,and it was plastered with muck!..and from there,all the way to the fuel filter on the firewall,he used "special bio-diesel rated rubber hose"..it was run loosely on the inside of the frame rail,had maybe 3 zip ties on it,and it was drooped over the exhaust pipes in a few places!....I wasted no time moving it away from the exhaust,and tying it up better "for now"...truck isn't on the road and probably wont be any time soon...

I have yet to replace the rubber hose,I want to use copper tubing,with short rubber sections at each end to isolate it from vibrations..he also added a Raycor filter I'm not very fond of,and used "push on" hose barbs,with yellow washers on them,that I had to use hose clamps on so air couldn't be sucked in the lines while it sat...thankfully the former owner didn't do many other "improvements" to the truck--nothing I hate more than fixing someone else's butchery...(Its OK if I do it though!..)..