Hesitation problems from idle to acceleration...67 CJ5 - JeepForum.com

 
LinkBack Thread Tools
post #1 of 4 Old 09-08-2009, 07:51 PM Thread Starter
mwhanson
Registered User
1967 CJ5 
 
Join Date: Aug 2009
Location: Grand Rapids
Posts: 84
Hesitation problems from idle to acceleration...67 CJ5

I have a 67 CJ5, with a 225 V6 Dauntless, no upgrades besides the Headman headers...timing is set perfect to manual, has a 2 Jet Rochester carb that was just rebuilt (basic carb kit), idles perfect at 700-800rpms...problem, as soon as you hit the accelerator it has a quick spot where it sounds like the engine just died, then it peps up...if you very gently press on the accelerator is will miss that spot and the rpms will go up without problems. This is usually a pain at a stop light sitting at idle for a few then putting into first and trying to accelerate, it's like it's going to die. Once you get past that spot it runs smooth. Any thoughts?? It's the original carb...new fuel tank and lines, old fuel pump (but seems to pump just fine).

mwhanson is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 09-08-2009, 09:13 PM
LT1CJ7
Registered User
 
LT1CJ7's Avatar
1983 CJ7 
 
Join Date: Aug 2004
Location: [duhm-as]
Posts: 4,512
Sounds like a bad accelerator pump or a blockage in the squirters.
LT1CJ7 is offline  
post #3 of 4 Old 09-08-2009, 09:46 PM Thread Starter
mwhanson
Registered User
1967 CJ5 
 
Join Date: Aug 2009
Location: Grand Rapids
Posts: 84
Quote:
Originally Posted by LT1CJ7 View Post
Sounds like a bad accelerator pump or a blockage in the squirters.
New accelerator pump with the carb rebuild...cleaned the jets, but not new ones, maybe I'll pop the top and pull those out and check.
mwhanson is offline  
post #4 of 4 Old 09-09-2009, 07:55 AM
chill254
Registered User
1984 CJ8 
 
Join Date: Feb 2009
Location: Georgia
Posts: 169
Definatley sounds like something to do with the accel system.

Try looking at the stream of gas coming from the nozzle.


Take off the main coil wire and crank the engine for a couple seconds to get a little pressure in the fuel lines. Take your air filter off, hold the choke plate open so you can see down the carb and pull the linkaget o full throttle. You should see a stream of fuel coming out of the nozzle. I am not really fimiliar with this carb so I am not sure if it should have only one stream or two. However, you should see a very even stream of fuel.
chill254 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Hesitation when accelerating from idle primezero Jeep CJ Forum 8 10-16-2009 05:51 PM
258 idle problems hoosierine Jeep CJ Forum 7 08-22-2007 01:34 AM
idle problems Jermy01 Jeep CJ Forum 8 03-30-2006 09:02 AM
Acceleration hesitation on 79 CJ5 304 BadHabit Jeep CJ Forum 2 10-13-2003 12:25 PM
Hesitation problems.. help!! TimR Jeep CJ Forum 2 06-16-2003 07:41 PM

Posting Rules  
You may post new threads
You may 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 Off
Pingbacks are On
Refbacks are On

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