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Unread 10-23-2003, 02:01 PM   #1
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Join Date: Mar 2003
Location: Oklahoma City, OK
Posts: 183
I think I goofed

In the quest for a beter running Jeep. I purchased a motorcraft 2100 off E-bay. The carb seems to be in good shape, but I can't seem to get the Jeep to run for any period of time.

When it does run, it screams at about 3500 RPM. Seems like it would continue to run if I let it sit at that RPM, but I can't get it down to an idle before it dies out.

THEN, when I go to re-start it, it's like it has no fuel. It has to be reprimed manually before it will fire back up.

Any ideas? I'm not really a carb guy.

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Unread 10-23-2003, 11:08 PM   #2
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1971 CJ5 
Join Date: Jan 2002
Location: Eagle Point Oregon
Posts: 6,188
Sounds like a manifold leak. First, check to see if you have the proper base gasket. Motorcraft has two different carb bases.If you use the smaller gasket on the large base, it will create a huge manifold leak around the back of the carb. Make sure that the gasket fits the manifold as well. Next, make sure that there arn't any open vacuum ports. Lastly,insure that you didn't incorrectly install or knock any other vacuum lines off when replaced the carb.
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Unread 10-24-2003, 12:18 AM   #3
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Join Date: Sep 2003
Location: Phoenix, Arizona
Posts: 13
have you checked or messed with your timing at all could be that try turning it while you have it running other than that sounds like maybe you have a few hoses wrong check them again. Maybe someone else has some better ideas but i would try that first...
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