can i plumb all the fuel lines in 5/16? - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 12-26-2001, 07:37 PM Thread Starter
 
Join Date: Oct 2000
Posts: 609
Thanks: 0
Thanked 0 Times in 0 Posts
 
can i plumb all the fuel lines in 5/16?

I think my OE fuel lines were 1/4 to the carb and 5/16 back to the tank. I might be wrong though. Can i just plumb the hole thing in 5/16, or is there a reason why they are two different sizes.

I am just being a cheapskate, I dont want to buy two rolls of tubing. Thanks- Tim

[img]/wwwthreads_images/icons/smile.gif[/img]
timCsjeep is offline  
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 12-26-2001, 07:46 PM Thread Starter
 
Join Date: Oct 2000
Posts: 609
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: can i plumb all the fuel lines in 5/16?

...or what about just running all rubber tube??

[img]/wwwthreads_images/icons/smile.gif[/img]
timCsjeep is offline  
post #3 of (permalink) Old 12-26-2001, 10:54 PM
Keyboard Implanted
 
Smokngun's Avatar
 
Join Date: Sep 1999
Location: Palmyra, WI
Posts: 2,209
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: can i plumb all the fuel lines in 5/16?

My CJ-7 has 5/16" for fuel suply and vapor canister, and 1/4" for the return line. I think the return line needs to be smaller than the suply line. The reason being to cause a bit of a restriction on the return side so some gas goes to the carb. If both the return and suply lines were the same size, the fuel would take the path of least resistance and most of it would just dump back into the tank...or am I way off base here?


Mike H.
1983 CJ-7 Laredo
Smokngun is offline  
Sponsored Links
Advertisement
 
post #4 of (permalink) Old 12-26-2001, 10:59 PM
Old Hand
 
Join Date: May 2000
Location: Raleigh, NC
Posts: 535
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: can i plumb all the fuel lines in 5/16?

Yes, I re-did both my supply and return lines with 5/16".. that is what the dealer recommended to do all of it with (not that the dealer's word is gospel). your tank probably also has a vent or two on it, that you can plumb to a 5/16 or 1/4 or whatever line to vent into the charcoal canister.

and no, don't run all rubber. it wears down faster, is easier to puncture, and it gets smaller when suction is applied. if you haven't found your fuel line yet, you can get it from carquest, they call it 5/16" (steel) brake line though.

Mark
83 CJ-7 and 76 CJ-7 with stuff
sloop is offline  
post #5 of (permalink) Old 12-27-2001, 01:21 AM Thread Starter
 
Join Date: Oct 2000
Posts: 609
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: can i plumb all the fuel lines in 5/16?

sloop thanks for the news- Tim

[img]/wwwthreads_images/icons/smile.gif[/img]
timCsjeep is offline  
post #6 of (permalink) Old 12-27-2001, 09:26 PM
I Might Just Know What I'm Talking About
 
Join Date: Jul 2000
Location: Westen Canada
Posts: 1,838
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: can i plumb all the fuel lines in 5/16?

I ended up doing mine in 3/8 & 5/16 . Just bought the rolls and had "fun" with the tubing bender . Did all the brakelines too . A picture is presented of the finished product [img]/wwwthreads_images/icons/smile.gif[/img] . Good Luck





<font color=black>Jeff [img]/wwwthreads_images/icons/cool.gif[/img] </font color=black>
Attached Images
File Type: jpg 9-633052-framesmall8x600.JPG (70.8 KB, 0 views)
Jeepzilla is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome