Fuel rail for Double Pumper leaking - The 1947 - Present Chevrolet & GMC Truck Message Board Network

joedoozer · 11-16-2009, 07:50 PM

Just got the new motor in the truck, and decided to put the new Holley in too. I went and bought one of those 1 piece fuel lines that runs to each bowl. The first one I bought leaked, at the time I thought it was chrome in the flare. Swapped it out with a new one......and still leaking. After getting a closer look, and pulling on it. It looks like it's not sitting quite square. I am thinking of cutting it with a tubing cutter, and putting a piece of rubber line in the middle. This will allow me to tighten each one individually, and should make it so they both sit better on the seat. But it will look kind of ghetto. Anyone had this problem before? Can I get away with a little tweaking and bending?

**LockDoc** · 11-16-2009, 08:36 PM

-
I just went through the same thing. I finally decided it was going to quit leaking or I was going to strip out the threads, which ever came first. I just kept tightening it until it finally quit leaking.

LockDoc

1968SWBBigBlock · 11-16-2009, 10:18 PM

Had the same issue with mine - twice -- returned it to Jegs both times - turns out these get returned very often - they just do not work well
buy a fuel log or a good braided line and they will not leak

hayhauler71 · 11-16-2009, 10:38 PM

Take the line off and put your wrench on the nut that is leaking and bend it in the direction you need. If it still leaks buy a fuel log or braided line.

joedoozer · 11-17-2009, 12:40 AM

Yeah I was thinking about bending it. I will mess with it after work if I am up for it. Putting one of our cats down tomorrow......so the truck will have to wait a day or so.

95light · 11-17-2009, 11:20 AM

The Jegs setup is junk. I screwed around with it for an hour or two and never got it to seal. I went to napa and bought a short piece of 3/8 brake line flared at both ends. I cut it up and replaced the two ends going to the carb on the jegs piece and it's worked great and you can't really see the splice under the air cleaner.

Actually, I think you can classify them as dangerous junk. Nothing like having gas leaking under pressure.

joedoozer · 11-17-2009, 11:31 AM

Quote:

Originally Posted by 95light

The Jegs setup is junk. I screwed around with it for an hour or two and never got it to seal. I went to napa and bought a short piece of 3/8 brake line flared at both ends. I cut it up and replaced the two ends going to the carb on the jegs piece and it's worked great and you can't really see the splice under the air cleaner.

Actually, I think you can classify them as dangerous junk. Nothing like having gas leaking under pressure.

And over a hot engine.

I don't think its the crappy flare that is the leak, I think its the fact that it doesn't sit straight. I will try bending it a bit. But I can see me cutting it into 2 pieces. So I can hook up each one independently. I am going to try and find some kind of steel braid with compression fittings on each end. Cut out a section of it and put in the braided line.

kelsfine69 · 11-17-2009, 12:01 PM

You can get Russell Fuel AN adapters to go into the Holley then make your own lines with a T. I actually put the Holley Fuel regulate right beside the carb and ran my lines. I can post a pic later if you want...

95light · 11-17-2009, 12:28 PM

Quote:

Originally Posted by joedoozer

And over a hot engine.

I don't think its the crappy flare that is the leak, I think its the fact that it doesn't sit straight. I will try bending it a bit. But I can see me cutting it into 2 pieces. So I can hook up each one independently. I am going to try and find some kind of steel braid with compression fittings on each end. Cut out a section of it and put in the braided line.

I put some gear marking compound on the flare and reinstalled and sure enough only part of the flare was seating. I chalked it up to a poor flare job plus chroming over it.

Now that I think about it I did add a rubber fuel line splice to both ends thinking it was the alignment too with no luck. That when I used the marking compound.

67chevemall · 11-17-2009, 02:08 PM

I hear ya those things are a big pita.

70 Suburban · 11-17-2009, 02:09 PM

I use the flex kit from summit

joedoozer · 11-17-2009, 08:57 PM

Bought one of these. Should be here tomorrow.

kelsfine69 · 11-17-2009, 09:00 PM

This is what I did...

three80three · 07-14-2014, 01:45 PM

Hey I'm having a bit of a situation simular to this I have a 650 double pumper and m y rear diaphragm is leaking can't afford to pay for a rebuild kit til the weekend so I was wonder could I put a single fuel line on and just block the back off?

67chevemall · 07-14-2014, 01:55 PM

Quote:

Originally Posted by three80three

Hey I'm having a bit of a situation simular to this I have a 650 double pumper and m y rear diaphragm is leaking can't afford to pay for a rebuild kit til the weekend so I was wonder could I put a single fuel line on and just block the back off?

It will run with just the front but dont stomp on the pedal.

three80three · 07-14-2014, 03:44 PM

I figured that but j wanted here it from someone who knew better than I would so I can run it like that but if I stuml down on it whats going to happened willnit shut offf or just bog down

11-16-2009, 07:50 PM	#1
joedoozer is Certifiable Join Date: Feb 2008 Location: Hinesville, Georgia Posts: 160	Fuel rail for Double Pumper leaking Just got the new motor in the truck, and decided to put the new Holley in too. I went and bought one of those 1 piece fuel lines that runs to each bowl. The first one I bought leaked, at the time I thought it was chrome in the flare. Swapped it out with a new one......and still leaking. After getting a closer look, and pulling on it. It looks like it's not sitting quite square. I am thinking of cutting it with a tubing cutter, and putting a piece of rubber line in the middle. This will allow me to tighten each one individually, and should make it so they both sit better on the seat. But it will look kind of ghetto. Anyone had this problem before? Can I get away with a little tweaking and bending? __________________ 1972 Chevy C10 LWB 350 Auto Blue with a white roof.

11-16-2009, 08:36 PM	#2
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,593	Re: Fuel rail for Double Pumper leaking - I just went through the same thing. I finally decided it was going to quit leaking or I was going to strip out the threads, which ever came first. I just kept tightening it until it finally quit leaking. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 11-16-2009 at 08:36 PM.

11-16-2009, 10:18 PM	#3
1968SWBBigBlock Active Member Join Date: Oct 2006 Location: Ohio Posts: 1,643	Re: Fuel rail for Double Pumper leaking Had the same issue with mine - twice -- returned it to Jegs both times - turns out these get returned very often - they just do not work well buy a fuel log or a good braided line and they will not leak __________________ 1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles 18.5" x 31" Hoosier Pro Street Radials ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree

11-16-2009, 10:38 PM	#4
hayhauler71 Registered User Join Date: Aug 2009 Location: St. Paul MN. Posts: 1,996	Re: Fuel rail for Double Pumper leaking Take the line off and put your wrench on the nut that is leaking and bend it in the direction you need. If it still leaks buy a fuel log or braided line.

11-17-2009, 12:40 AM	#5
joedoozer is Certifiable Join Date: Feb 2008 Location: Hinesville, Georgia Posts: 160	Re: Fuel rail for Double Pumper leaking Yeah I was thinking about bending it. I will mess with it after work if I am up for it. Putting one of our cats down tomorrow......so the truck will have to wait a day or so. __________________ 1972 Chevy C10 LWB 350 Auto Blue with a white roof.

11-17-2009, 11:20 AM	#6
95light Registered User Join Date: Nov 2007 Location: Cartersville, ga. Posts: 47	Re: Fuel rail for Double Pumper leaking The Jegs setup is junk. I screwed around with it for an hour or two and never got it to seal. I went to napa and bought a short piece of 3/8 brake line flared at both ends. I cut it up and replaced the two ends going to the carb on the jegs piece and it's worked great and you can't really see the splice under the air cleaner. Actually, I think you can classify them as dangerous junk. Nothing like having gas leaking under pressure.

11-17-2009, 12:01 PM	#8
kelsfine69 18 Till I Die Join Date: Mar 2005 Location: Alberta, Canada Posts: 1,522	Re: Fuel rail for Double Pumper leaking You can get Russell Fuel AN adapters to go into the Holley then make your own lines with a T. I actually put the Holley Fuel regulate right beside the carb and ran my lines. I can post a pic later if you want... __________________ 2011 GMC Acadia 1969 GMC BBC LS7 2007 GMC Crew Duramax 1987 Camaro Iroc 350 Tuned Port Injection 42000Km 1987 Chevrolet Silverado 350 TBI 1987 Chevrolet Silverado 350 TBI(yes 2) Take me drunk, I'm too home...

11-17-2009, 02:08 PM	#10
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: Fuel rail for Double Pumper leaking I hear ya those things are a big pita. __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

11-17-2009, 02:09 PM	#11
70 Suburban Rods Join Date: Nov 2002 Location: Bryan, TX Posts: 1,398	Re: Fuel rail for Double Pumper leaking I use the flex kit from summit __________________ Just keepin it simple. 1965 C-10 Ext cab build. 350??(Does it count at 2 truck if I had to cut one up?) 1966 C-10 lwb 283 auto 1970 Suburban in pieces 1971 Blazer 4wd....restore someday. all factory CST 1972 Blazer 4wd parts truck still a roller 1972 GMC Sierra Grandee 1998 Chevy ext driver. 2005 F**D the wife drive...(cant fix women)

11-17-2009, 08:57 PM	#12
joedoozer is Certifiable Join Date: Feb 2008 Location: Hinesville, Georgia Posts: 160	Re: Fuel rail for Double Pumper leaking Bought one of these. Should be here tomorrow. __________________ 1972 Chevy C10 LWB 350 Auto Blue with a white roof.

11-17-2009, 09:00 PM	#13
kelsfine69 18 Till I Die Join Date: Mar 2005 Location: Alberta, Canada Posts: 1,522	Re: Fuel rail for Double Pumper leaking This is what I did... Attached Images __________________ 2011 GMC Acadia 1969 GMC BBC LS7 2007 GMC Crew Duramax 1987 Camaro Iroc 350 Tuned Port Injection 42000Km 1987 Chevrolet Silverado 350 TBI 1987 Chevrolet Silverado 350 TBI(yes 2) Take me drunk, I'm too home...

07-14-2014, 01:45 PM	#14
three80three Registered User Join Date: Apr 2014 Location: selma,Alabama Posts: 135	Re: Fuel rail for Double Pumper leaking Hey I'm having a bit of a situation simular to this I have a 650 double pumper and m y rear diaphragm is leaking can't afford to pay for a rebuild kit til the weekend so I was wonder could I put a single fuel line on and just block the back off?

07-14-2014, 03:44 PM	#16
three80three Registered User Join Date: Apr 2014 Location: selma,Alabama Posts: 135	Re: Fuel rail for Double Pumper leaking I figured that but j wanted here it from someone who knew better than I would so I can run it like that but if I stuml down on it whats going to happened willnit shut offf or just bog down



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