Holley 1920 Carb question 225 - 6

Dan

Thank you for getting me to the tech articles. Did wonders for knowing what I am looking for.

I reset the float height - not really that far off, and put it all back together and tightened up.

back on the car, ran fine, but the same gasoline dump when the accelerator was pushed.

looking at the tech diagrams you sent me access to, the culprit vent is the accelerator pump air chamber vent. The diagrams show this as an air to air vent for the air chamber behind the accelerator pump diaphragm.

I believe the issue is a torn or holed accelerator diaphragm. I am going to pull the carb off again and see if I can put my hands on a rebuild kit. I hope the accelerator pump diaphragm is part of the kit.

BTW, inside has been very clean and no visible trash. car had a fuel line filter on it when I bought it and that was one of the first things I replaced.

Lou