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 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-11-2012, 11:48 AM   #1
JCampbell
Account Suspended
 
Join Date: Apr 2008
Location: Hesperia, Ca
Posts: 1,332
Looking for fuel line advice

Gearing up to run all the fuel lines on my dually and looking for some advice. I was originally going to run it all in hard line, but now I’m thinking it may be less headache to use braided fuel line instead. Then again, maybe a combination of the two would be best. Looking for some input from anybody who’s been down this road before.

Also, what’s the procedure for connecting braided fuel line to hard line? Does the hard line need to be flared or anything?

Pertinent details: TBI swap; electric, frame mounted fuel pump; 10-20 p.s.i.
JCampbell is offline   Reply With Quote
Old 12-11-2012, 07:29 PM   #2
kalbert
Registered User
 
Join Date: Jun 2012
Location: Minnesota
Posts: 509
Re: Looking for fuel line advice

Braided line will be easier to work with, but pretty expensive considering the cost of the hose and all the fittings that would be required. I've seen -6AN to Saginaw fitting adapters so hooking up to the TBI would be a snap. There are fittings available for connecting braided line to hard line.

Hard line would be more difficult to work with but would be considerably cheaper. You'll of course still need short pieces of hose between components. Being only 20 PSI you can get a way with good quality EFI fuel hose. You'll want to put a barb on the end of the hard line so the hose clamp will have something to work with. This can easily be done with a double flare tool, just mush it with the die about half way and skip the second step where you fold the inside over. You could probably also use a hose clamp and barb to connect braided line to hard line.

Personally I've worked with both on various projects. On my current truck with TBI I'm going to do braided hose with nice fittings where you can see it under the hood, hard line along the frame to save some cost, and braided hose connections to the sending unit using heavy duty stainless clamps.
kalbert is offline   Reply With Quote
Old 12-11-2012, 07:44 PM   #3
JCampbell
Account Suspended
 
Join Date: Apr 2008
Location: Hesperia, Ca
Posts: 1,332
Re: Looking for fuel line advice

Thanks for the feedback.

So with the EFI fuel line I can simply use a standard grade worm clamp at the hard line connections, provided I barb the hard line? No super-fancy $1,000 hose clamps needed?

Great!
JCampbell is offline   Reply With Quote
Old 12-11-2012, 10:45 PM   #4
motornut
78K & 79C Jimmys
 
motornut's Avatar
 
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
Re: Looking for fuel line advice

Quote:
Originally Posted by JCampbell View Post
Thanks for the feedback.

So with the EFI fuel line I can simply use a standard grade worm clamp at the hard line connections, provided I barb the hard line? No super-fancy $1,000 hose clamps needed?

Great!
no don't use worm clamps,heck i don't like them even for low pressure fuel
Attached Images
 
__________________
John
1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
motornut is offline   Reply With Quote
Old 12-12-2012, 02:33 PM   #5
kalbert
Registered User
 
Join Date: Jun 2012
Location: Minnesota
Posts: 509
Re: Looking for fuel line advice

Quote:
Originally Posted by motornut View Post
no don't use worm clamps,heck i don't like them even for low pressure fuel
Agreed. Spend a few extra cents and use the band/nut/scew type shown.
kalbert is offline   Reply With Quote
Old 12-13-2012, 01:37 AM   #6
wyattglock
Registered User
 
wyattglock's Avatar
 
Join Date: Jul 2010
Location: Lafayette, IN
Posts: 621
Re: Looking for fuel line advice

As said before, don't use the worm clamps. My local Advance Auto had a fuel injection clamp that doesn't have the serrations for the worm drive. As a result, the clamp doesn't cut into the hose at all. It also gives a cleaner look while holding better imho.
wyattglock is offline   Reply With Quote
Old 12-13-2012, 01:05 PM   #7
JCampbell
Account Suspended
 
Join Date: Apr 2008
Location: Hesperia, Ca
Posts: 1,332
Re: Looking for fuel line advice

10-4
JCampbell is offline   Reply With Quote
Reply

Bookmarks


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 03:04 AM.


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