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I have a 1968 mustang and I just rebuilt the Autolite 2100 carburetor on it. I didn’t notice or take note of it before the rebuild but I noticed that my accelerator pump arm does not come in contact with the fuel bowl vent components thus not allowing the vent to open up properly as it should. I think it has something to do with my throttle components possibly on the carb and not allowing that arm to actuate it. Is this component necessary to the carb or can I just ignore it and move on?
Any and all help is very much appreciated thanks!
 

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It's probably easier to fix it now (off the car) than to try to fix it if you get a lot of fuel running out of the carb. If it worked properly before the rebuild, you should put it back the way it was.
 

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1. With throttle valve closed toward curb idle position, measure distance between lower surface of vent valve and valve seat on air horn casting. Measurement should be 7/64ths for 1967 and 5/64 for 1968 & 1969 unless specified otherwise.
2. To adjust bend vent rod in or out as needed.
 
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