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post #1 of (permalink) Old 09-02-2001, 06:43 PM
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cto, stepper motor

I own an 83 jeep cj 5 with the computer controlled carter BBD carburetor and pulse air emissions. I recently had a meltdown of my cto valve and the attaching vaccum lines were left behind to cause numerous running problems. Also my recently purchased remanufactured stepper motor for the carburetor just broke into two pieces and does not work. Any information on where to find these rare parts would be very helpful.

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post #2 of (permalink) Old 09-02-2001, 07:14 PM
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Re: cto, stepper motor

Swap out the carb, it's the only way to go.

Jeep Icon, Raised 2", Lowered 2", 4pt Independant Suspention. (Yes, that is an Oompa Loompa driving it.)
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post #3 of (permalink) Old 09-02-2001, 10:12 PM
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Re: cto, stepper motor

If you don't have emission checks where you live I would suggest you do away w/ the stepper motor and the emissions junk. Do a search on "nutter bypass" and find the instructions on this mod. My stepper motor never did work right so I did the bypass and it runs alot better. Also got rid of the emission junk and now I can actually see to work on the motor! [img]/wwwthreads_images/icons/smile.gif[/img]

Greg - 85 CJ7, 258, Nutter Bypass, TR Upgrade
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post #4 of (permalink) Old 09-02-2001, 10:34 PM
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Re: cto, stepper motor

You have a few options.

1- what I am using now - swap to an earlier Carter BBD. I got a rebuilt carb for a 1980 CJ-7 258 and it has been running great for the last 4 months. This will let you keep your original air cleaner if your state is like mine and requires an original equipment check. 82/83 was when the stepper motor/computer control system was put in

2- get an old Rochester 2bbl carb, will bolt right up

3- use an adapter to use a standard Motorcraft carb. Part # TRD-2086 from Summit Racing. This will let you use a Motorcraft 2100 from a Ford/Jeep or any standard 2bbl Holley.

4- Weber, high dollar but supposedly worth it to some people

After you get a non-computer-controlled carb in, then just hook up the basic vacuum circuits.

83 CJ-7 and 76 CJ-7 with stuff
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