smelling gas - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

Reply
 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 06-22-2003, 08:24 PM Thread Starter
 
Join Date: Jun 2003
Posts: 183
Thanks: 0
Thanked 0 Times in 0 Posts
 
smelling gas

I recently purchased my first jeep, an '84 CJ-7, 258 with Howell fuel inj, (I've driven Toy trucks for 20 yrs). While driving on a country hwy with top off I began to smell gasoline. I pulled over and checked TBI and ALL fuel and return lines and found no obvious leaks. Following my nose, the odor is strongest behind filler, I opened cap and small amount of fuel (maybe 1cc) dribbled out. Could this be a problem with injector return? evaporator? cap? or something else?

thanks
Scott
holsters is offline  
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 06-22-2003, 08:26 PM
Keyboard Implanted
 
Join Date: Dec 2000
Location: Vancouver, BC, Canada
Posts: 2,471
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: smelling gas

Possibly the cap, also make sure that there are no rust holes in the filler neck.
xj_kid is offline  
post #3 of (permalink) Old 06-22-2003, 08:42 PM
Way Outta Control
 
Join Date: Sep 1999
Location: The Palouse
Posts: 13,432
Thanks: 1
Thanked 3 Times in 3 Posts
 
Re: smelling gas

1. Welcome to the forum.
2. Please complete your user profile:[*] It's a nice thing to do.[*] It's helps to know who we're talkin' to.[*] It helps to know what's your ride.[*]It helps to know the local in which you live.

3. Read the New Posters Message at the top of the forum.
4. Participate! Two brains are better'n one.
5. The return gas line is under pressure,
6. I'd look for the leak in one of three places...[*] Where the lines go over the frame crossmember,[*] In the flexible lines from the hard lines to the sender/vents.[*] The gas tank seams.
7. You didn't mention where the filter was installed.
LEVE is offline  
Sponsored Links
Advertisement
 
post #4 of (permalink) Old 06-22-2003, 09:11 PM Thread Starter
 
Join Date: Jun 2003
Posts: 183
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: smelling gas

The odor's not at the "filter" but at the filler neck/cap area. The filter is just behind elect pump just for'd toe T case. No odor there.
holsters is offline  
post #5 of (permalink) Old 06-22-2003, 11:29 PM
Way Outta Control
 
Join Date: Sep 1999
Location: The Palouse
Posts: 13,432
Thanks: 1
Thanked 3 Times in 3 Posts
 
Re: smelling gas

1. Well, I'd still drop the tank,
2. Examine the seams,
3. and the felx lines...
4. You may have pinholes in the tank...
LEVE is offline  
post #6 of (permalink) Old 06-23-2003, 06:34 AM
Can't Get Enough
 
ecamp55's Avatar
 
Join Date: Jun 2002
Location: Cottonwood, AZ / Wherever the road takes us
Posts: 1,106
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: smelling gas

I'd take a hard look at the rubber lines from the tank to the steel lines. I'm going thru that with my 84 Ford pickup....rotten lines.
ecamp55 is offline  
post #7 of (permalink) Old 06-23-2003, 05:52 PM
 
Join Date: Oct 2001
Posts: 1,720
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: smelling gas

I have a minor leak on my '74 CJ5. It is right where the filler goes into the tank. There are two hoses, and it is the smaller, vent hose inlet that is leaking. Since the tank on this rig is a PITA to remove, I tried stuffing gas tank fix epoxy up in there the best I could. It mostly worked. I only smell gas when at completely full. I figure to replace the tank this winter with a larger capacity poly tank. Anyhow, I would check the filler and vent hoses, and their inlets into the tank.
cj5_pilot is offline  
post #8 of (permalink) Old 06-23-2003, 06:05 PM
Old Hand
 
sourpwr's Avatar
 
Join Date: Mar 2003
Location: Columbus, OH
Posts: 729
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: smelling gas

I too have an '84 CJ7 with the Howell TBI. I had gas leaks at the Trottle body and then in the small diameter "soft" lines on the top left side of the gas tank. If you have allready checked the TBI, I would check all of the "soft" lines before dropping your tank.

Mike
sourpwr is offline  
post #9 of (permalink) Old 06-24-2003, 10:20 AM
 
Join Date: Apr 2002
Posts: 36
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: smelling gas

I was smelling gas last year near the fuel tank of my 84 CJ-7, and turned out to be similar problem to the one cj5-pilot described. There was a leak where hoses go into top of tank, and I only smelled gas when tank was full and sloshing around near the top. Could be the smell is coming from closer to the tank versus top of the filler?
chrispchang is offline  
post #10 of (permalink) Old 06-24-2003, 10:33 AM Thread Starter
 
Join Date: Jun 2003
Posts: 183
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: smelling gas

I havn't drooped the tank yet. I'm waiting till it's closer to MT. The odor is up inside the R rear corner of the tub, and is gone now that the tank is half MT. So its probably at the top of the tank at filler tube or vent or any of the other connections at the mouth. When I drop the tank (probably next week) I'll let you know want I find. The stock skid plate has been crashed so it could easily have broked a solder joint in one of the small tubes on the tank cap. (Happened once on my wife's suburban).

Thanks for all the tips. I'll let you know what I find.
holsters 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