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Unread 09-08-2009, 07:51 PM   #1
mwhanson
Registered User
1967 CJ5 
 
Join Date: Aug 2009
Location: Grand Rapids, Michigan
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).

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Unread 09-08-2009, 09:13 PM   #2
LT1CJ7
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1983 CJ7 
 
Join Date: Aug 2004
Location: [duhm-as]
Posts: 4,512
Sounds like a bad accelerator pump or a blockage in the squirters.
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Unread 09-08-2009, 09:46 PM   #3
mwhanson
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1967 CJ5 
 
Join Date: Aug 2009
Location: Grand Rapids, Michigan
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.
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Unread 09-09-2009, 07:55 AM   #4
chill254
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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.
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