The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-16-2009, 07:50 PM   #1
joedoozer
is Certifiable
 
joedoozer's Avatar
 
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.
joedoozer is offline   Reply With Quote
Old 11-16-2009, 08:36 PM   #2
LockDoc
The Older Generation


 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,771
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.
LockDoc is offline   Reply With Quote
Old 11-16-2009, 10:18 PM   #3
1968SWBBigBlock
Active Member
 
1968SWBBigBlock's Avatar
 
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
1968SWBBigBlock is offline   Reply With Quote
Old 11-16-2009, 10:38 PM   #4
hayhauler71
Registered User
 
hayhauler71's Avatar
 
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.
hayhauler71 is offline   Reply With Quote
Old 11-17-2009, 12:40 AM   #5
joedoozer
is Certifiable
 
joedoozer's Avatar
 
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.
joedoozer is offline   Reply With Quote
Old 11-17-2009, 11:20 AM   #6
95light
Registered User
 
95light's Avatar
 
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.
95light is offline   Reply With Quote
Old 11-17-2009, 11:31 AM   #7
joedoozer
is Certifiable
 
joedoozer's Avatar
 
Join Date: Feb 2008
Location: Hinesville, Georgia
Posts: 160
Re: Fuel rail for Double Pumper leaking

Quote:
Originally Posted by 95light View Post
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.
__________________
1972 Chevy C10 LWB 350 Auto
Blue with a white roof.

Last edited by joedoozer; 11-17-2009 at 11:33 AM.
joedoozer is offline   Reply With Quote
Old 11-17-2009, 12:01 PM   #8
kelsfine69
18 Till I Die
 
kelsfine69's Avatar
 
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...
kelsfine69 is offline   Reply With Quote
Old 11-17-2009, 12:28 PM   #9
95light
Registered User
 
95light's Avatar
 
Join Date: Nov 2007
Location: Cartersville, ga.
Posts: 47
Re: Fuel rail for Double Pumper leaking

Quote:
Originally Posted by joedoozer View Post
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.
95light is offline   Reply With Quote
Old 11-17-2009, 02:08 PM   #10
67chevemall
Registered User
 
67chevemall's Avatar
 
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
67chevemall is offline   Reply With Quote
Old 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)
70 Suburban is offline   Reply With Quote
Old 11-17-2009, 08:57 PM   #12
joedoozer
is Certifiable
 
joedoozer's Avatar
 
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.
joedoozer is offline   Reply With Quote
Old 11-17-2009, 09:00 PM   #13
kelsfine69
18 Till I Die
 
kelsfine69's Avatar
 
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...
kelsfine69 is offline   Reply With Quote
Old 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?
three80three is offline   Reply With Quote
Old 07-14-2014, 01:55 PM   #15
67chevemall
Registered User
 
67chevemall's Avatar
 
Join Date: Apr 2003
Location: NB
Posts: 3,367
Re: Fuel rail for Double Pumper leaking

Quote:
Originally Posted by three80three View Post
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.
67chevemall is offline   Reply With Quote
Old 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
three80three is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:13 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com