can I pressure test my F.I. lines? - 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 11-25-2002, 06:21 AM Thread Starter
Can't Get Enough
RickB's Avatar
Join Date: Dec 2000
Location: Erie, Pa
Posts: 1,125
Thanks: 0
Thanked 0 Times in 0 Posts
can I pressure test my F.I. lines?

I am doing a 4.0 swap into my 1980 CJ7, and want to somehow pressure test my fuel lines for the fuel injection. I have all the lines hooked up. Can I just jumper the electric pump to the battery and pressurize the lines to check for leaks and loose hoses? I'm using a in-line pump.
RickB is offline  
Sponsored Links
post #2 of (permalink) Old 11-25-2002, 07:26 AM
Join Date: Sep 1999
Posts: 2,137
Thanks: 0
Thanked 0 Times in 0 Posts
Re: can I pressure test my F.I. lines?

Tip: Release the air from the fuel rail by pressing in on the schrader valve on the rail. Hold a rag over it when doing it so you don't get squirted!
Use safety glasses.
Jaffer is offline  
post #3 of (permalink) Old 11-25-2002, 08:44 AM
Can't Get Enough
Tippy's Avatar
Join Date: Feb 2001
Location: Alliance, Ne
Posts: 1,423
Thanks: 1
Thanked 0 Times in 0 Posts
Re: can I pressure test my F.I. lines?

Yes. Cycle the pump, push on the schrader valve like jaffer said, then repeat. The first couple of times you may just get a bit of air out of the valve before the fuel makes it all the way into the rail. I also put an in-line preasure gauge so I could see if my pump was working correctly. I used two hose clamps at each hose/steel connection and haven't had any leaks.
Tippy is offline  
Sponsored Links

Quick Reply

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


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

Email Address:


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