post #1 of Old 08-06-2013, 12:04 AM Thread Starter
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1977 CJ7 
Join Date: Apr 2013
Location: McDonough
Posts: 20
1977 CJ7 Hole near Idle Mixture Screw

I think I may be in trouble, but I have a hole near one of the idle mixture screws (on the base) on my 2100 Motorcraft carburetor. I just need another opinion to make sure I have no other choice but to buy another carburetor...or that I may be wrong and I can repair it. It's near the RED arrow.

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post #2 of Old 08-06-2013, 03:41 AM
John Strenk
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1976 CJ5 
Join Date: Feb 2005
Location: Shalersville Ohio
Posts: 14,896
Looks like that carb has had a rough life. Or is it the light on the surface making it look scratched up on the right?

But the good news is that the plug probably just fell out.
Just like the one on the other side.

Normally when they make a carb they need to have passages in the body that are drilled out then the end of the passage is plugged to seal it.
The plug here is usually domed shape that expands when flattened in the hole to seal it and hold it in place.

A good rebuild kit should have these plugs in them. Or epoxy a disk in there from a aluminum can or something....

It may not even cause you a problem if the gasket can seal against it.
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carburetor , problem

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