Fuel return line?
Junior User
Joined: Mar 2001
Posts: 55
Likes: 0
From: St. Helens USA
Fuel return line?
I'm on my second electric fuel pump and I hear that a fuel return line will greatly expand the life of the pump. Can somebody explain how to set this up? Thanks.
The only good chevy is a dead chevy
The only good chevy is a dead chevy
Fleet Mechanic
Joined: Aug 2000
Posts: 1,504
Likes: 1
From: Texas
Fuel return line?
It would greatly help if we knew what kind of setup you are running. If it's a factory efi application it should already have a return line.
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
=======================================
1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.
Can see both below.
[link:www.geocities.com/hotrodford_88/|Hotrodford_88's Webpage]
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
=======================================
1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.
Can see both below.
[link:www.geocities.com/hotrodford_88/|Hotrodford_88's Webpage]
Fleet Mechanic
Joined: Aug 2000
Posts: 1,504
Likes: 1
From: Texas
Fuel return line?
I really depends on how much pressure that pump puts up to the carb. If it's more than about 8 psi, then you might have to find a way to get the extra pressure out of the carb.
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
=======================================
1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.
Can see both below.
[link:www.geocities.com/hotrodford_88/|Hotrodford_88's Webpage]
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
=======================================
1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.
Can see both below.
[link:www.geocities.com/hotrodford_88/|Hotrodford_88's Webpage]
Elder User
Joined: Feb 2001
Posts: 829
Likes: 0
From: Porterfield
Fuel return line?
OK I have a Blue Holley with a regulator set up on my Pulling Truck. A few months back I read how if you run a return line it will help keep your pumps alive longer .. So What I did was this.
I had two 3/8th line running from the regulator to my 850 DP Holley, I removed them and went to one 1/2 line off one side run to the carb. then to a fuel log, and a 3/8th line run back to the tank. When I first turned the pump on I only had 2 LBS. line pressure, So I took the 3/8th Brass line barb off and taped it so I could Screw a 1/4" bolt into it with red locktight and cut the extra off flush with the end of the fitting, once it set up I drilled a 1/8" hole in the bolt, when I turned the pump on again I could now set the pressure at 7 psi to the carb. with lots of adjustment left.NOw my pump run steady without laboring against it self...
Daniel G. Homa
I had two 3/8th line running from the regulator to my 850 DP Holley, I removed them and went to one 1/2 line off one side run to the carb. then to a fuel log, and a 3/8th line run back to the tank. When I first turned the pump on I only had 2 LBS. line pressure, So I took the 3/8th Brass line barb off and taped it so I could Screw a 1/4" bolt into it with red locktight and cut the extra off flush with the end of the fitting, once it set up I drilled a 1/8" hole in the bolt, when I turned the pump on again I could now set the pressure at 7 psi to the carb. with lots of adjustment left.NOw my pump run steady without laboring against it self...
Daniel G. Homa
