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Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
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post #1 of (permalink) Old 12-04-2002, 02:33 PM Thread Starter
 
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Need carb help, got help, running better now

I just got a 2100 carb,it off a 1965 Mustang 289 V8, I want to use it on my 83 CJ7 258. What I want to know is at what point is the venturi tube measured? At the base they measures about 1 7/16" and is just about the same size as my old BB Carter. I am concerned because it is stamped 1.14 on the side of the bowl and I thought the 1.14 came on the 351 engine. Any help on this would be appreciated.
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post #2 of (permalink) Old 12-04-2002, 04:33 PM Thread Starter
 
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Re: Will this carb work?

Any one know if this carb will work on my CJ?
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post #3 of (permalink) Old 12-05-2002, 10:13 AM
 
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Re: Will this carb work?

It should work just fine, there are a few guys around that even have the 1.21 size MC2100's on their 258.
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post #4 of (permalink) Old 12-05-2002, 10:25 AM Thread Starter
 
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Re: Will this carb work?

Thanks, I going yo give it a try. I checked the venturi and it is about the same as my BB carb. at the butterfly and about a 1/16th larger at the smallest point.
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post #5 of (permalink) Old 12-06-2002, 11:39 AM
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Re: Will this carb work?

I have that exact carb on my '84 258. The only issue I had was that the jets were way to large (rich) for me. I live at 7000' and needed smaller jets. It should work fine otherwise. Once you get it installed and running get yourself a new set of plugs and read them often to find out if you are rich, lean, or just right. I ended up with #46 jets. They are available really cheap from http://www.carburetorfactory.com/

Also, if you have a computer controlled unit you might think about doing the Nutter Bypass as well.

Let me know if you need more info I would be glad to help.
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post #6 of (permalink) Old 12-06-2002, 12:14 PM Thread Starter
 
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Re: Will this carb work?

Thanks for your info, I ran the carb to day, and it would not take opening the throttle quickly.
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post #7 of (permalink) Old 12-06-2002, 01:35 PM
 
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Re: Will this carb work?

Stalling when you open the carb fast is usually a sign of the idle being way too lean or a problem with the accelerator pump not giving a shot -- if it has one.

Best regards

John
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post #8 of (permalink) Old 12-06-2002, 10:21 PM Thread Starter
 
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Re: Will this carb work?

After reading your post, I went out and checked to see if the accelerator pump was working. It looks like it is, I am getting a squirt of gas out of each side, when the throttle is opend. When I get some time tomorow I will try adjusting the idle mixture. Thanks
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post #9 of (permalink) Old 12-07-2002, 01:28 PM Thread Starter
 
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Re: Will this carb work?

Made idle adjustment richer today and Jeep is running much better. Going camping for 10 days over Christmas/New Years holiday and I have got to get every thing working right.
Thanks to all you guys for your helped. [img]images/graemlins/smile.gif[/img] Now on to next problem.
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