Autolite 1100 Carburetor problems - Vintage Mustang Forums
 
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post #1 of 6 (permalink) Old 07-17-2019, 08:18 PM Thread Starter
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Autolite 1100 Carburetor problems

I have a 67 Mustang inline 6 with an Autolite 1100 single barrel carburetor. I recently rebuilt my carb and the car was running good. About a month later I started to have problems.

1. My engine is sluggish, especially in first gear
2. I have oil pushing out of my breather cap on my valve cover
3. My valve does not seem to be closing on my carb.

Does anyone have any idea's of what might be going on

See the attached pics of my carb. The valve in the closed position. I can NOT close the valve fully. It won't move any further. Is there a way to adjust this ?

Any suggestions are appreciated.

Thanks
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post #2 of 6 (permalink) Old 07-17-2019, 09:09 PM
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Did you remember to install the (2) check balls and the Power Pin inside on your Manual carb when you rebuilt it? Just an FYI, The Automatic 1100 uses 3 check balls and a Power Pin. The Automatic Autolite 1100 uses an extra check ball because it has an extra dashpot on the passenger side of the carb.

That carb there is pretty die-hard and reliable if you rebuilt it correctly.

Post a picture of your Distributor...so we can see if you are using the correct distributor....If not and the carb and disty are mismatched, Then you've found the problem...Post a pic of the disty so we can see it. Also, Specifically with Manual Carbs, The Choke setting must be exact...otherwise the car will just die when you give it gas while putting it in 1st gear.

)

Tony K.



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Last edited by NEFaurora; 07-17-2019 at 09:13 PM.
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post #3 of 6 (permalink) Old 07-17-2019, 10:03 PM Thread Starter
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Thanks for the reply. Attached is a pic of my distributor. I don't think that's the problem. The car was running fine before the carb rebuild.
I did put the check ball and power pins in place. I will probably have to go back and make sure they are in the right spots.

I am still trying to figure out why the choke won't close fully. I am not sure that is part of my problem or not
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post #4 of 6 (permalink) Old 07-17-2019, 10:30 PM
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You can adjust the choke. The instructions for it are in chapter 10 of your shop manual.

First though, try lifting up the throttle linkage (as if you're pushing the gas pedal) and while you're holding it up try moving the choke plate. I'm guessing it'll allow it to move.

The big black plastic piece on the back has a bi-metallic spring in it that opens the choke as it warms up , but it can't open unless you're pushing on the gas. It also can't close all the way. That cam and screw and all on the back hold it in place if the throttle is putting pressure on it.

So lift up the throttle linkage and the choke should be free to move. Then you can turn the black plastic bit to adjust it and you probably don't have to mess with anything else.

When you're done, the heater hose is supposed to sit in that little tray on the back of the carb. Not a big deal but I figured I'd mention it since I saw it.
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post #5 of 6 (permalink) Old 07-17-2019, 10:58 PM
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Ok, It looks like the correct distributor.... I think that you are just dealing with an adjustment problem then... mostly with the carb.. choke probably...but not necessarily...I would start by cleaning out the choke area and rebuilding the choke....Make sure that the choke spring and linkage operation are not sticking.


)

Tony K.



Tony Kovar
Melbourne, FL (Formerly from Long Island, NY!)

1965 Mustang Convertible 200cid I6, 3spd Manual (Soon to be swapped for a '65 Date Coded C4!)
1966 Mustang Sprint 200 Registry Owner/Moderator
1966 Mustang Sprint 200 Convertible 200cid I6, C4 Auto
2007 Mustang V6 Convertible w/ Pony Package
MCA#70001

Getting Ready for the 2020 Melbourne, FL MCA Nationals!

Last edited by NEFaurora; 07-17-2019 at 11:00 PM.
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post #6 of 6 (permalink) Old 07-19-2019, 08:42 PM
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You should have 2 check balls and 1 (non-magnetic) Power Pin in your Manual Autolite 1100.

)

Tony K.



Tony Kovar
Melbourne, FL (Formerly from Long Island, NY!)

1965 Mustang Convertible 200cid I6, 3spd Manual (Soon to be swapped for a '65 Date Coded C4!)
1966 Mustang Sprint 200 Registry Owner/Moderator
1966 Mustang Sprint 200 Convertible 200cid I6, C4 Auto
2007 Mustang V6 Convertible w/ Pony Package
MCA#70001

Getting Ready for the 2020 Melbourne, FL MCA Nationals!
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