MC2100 carb/choke troubles - JeepForum.com
 
LinkBack Thread Tools
post #1 of 3 Old 11-18-2014, 10:43 AM Thread Starter
wsmutch
Registered User
1986 CJ7 
 
Join Date: Apr 2013
Location: Marquette
Posts: 189
MC2100 carb/choke troubles

I have a 1986 CJ7 with a 1971 258 motor and a MC2100 carb. Last summer I replaced the electric choke and it seems to function properly. In good conditions (above 30 degrees), it seems to work quite good. Lately, the jeep has started to give me trouble. The butterfly in the carb seems to get stuck in a mostly closed position. The jeep stalls a lot, and when it runs it wont give me any power. The only way to fix it is to remove the air cleaner and push the butterfly open with my finger. There is some resistance, but not a lot and it feels like it snaps open. After that it starts and runs normally. Ive checked the linkages and pivot points on the butterfly and choke and everything is clean. There is no one in my area that will work on carbs, and I really don't think it needs a rebuild. Has any one else had these issues?

wsmutch is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 11-18-2014, 10:50 AM
Mike Romain
Registered User
1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant
Posts: 18,083
The pivot rod that comes out the back of the electric choke unit seizes up easily. This is the rod that goes from the bimetal spring inside out to the choke linkages. Penetrating oil can loosen it, but I find taking it apart and adding a bit of anti-seize keeps it free.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
(10 new albums added Sept 16/10)
Mike Romain is offline  
post #3 of 3 Old 11-18-2014, 11:16 AM
GPER
Registered User
1979 CJ7 
 
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 1,826
I just got done putting a hedder and replaced my MC 1.08 with the MC 1.21. It is 15 degrees and I didn't even use the choke to start mine.
GPER 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



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