Speedy Auto > Auto FAQ > Cars > Ford

Ford: 1976 Ford Flooding, happy gilmore, floods


Question
Hi I have a 1976 Ford with a barrel carb and a 390.  When the truck has not been started for a few days I get it to start up but once I have it running it floods out.  I can see the fuel actually rising up two tubes at the top of the carb.  If I hit rev it up I can watch the fuel go down but if I let off it will begin to flood again.  I do not know what to do about this problem.  I have rebuilt the carb and I took it apart to see if the float was stuck and allowing the fuel to keep coming in.  However the float appears to be fine.  I filled it with fuel and tried to blow through it and it did not allow any air through.  If you have any thoughts on this I would be greatly appreciative.  I have one more question about the choke as well.  I was told when cold to just push down on the accelerator all the way before starting the engine and the choke would seat it's self and let out automatically.  But it does not seat.  Thank You again

Answer
Brian, the flooding could be a multitude of things, however it sounds very typical of a float that is either stuck, or it has not been properly adjusted. (which would cause it to stick)  Who did the rebuild?  Many mechanics think that they know what they are doing around a carb, but many of them don't.  If you are doing the work, make sure that you read the instructions that come with the carb kit about what position the choke should be set at.   Now, the choke could also cause the carb to flood.   When you start the truck in the morning, you should "tap" the pedal all the way to the floor.  Depending on the choke, you may need to "tap" the pedal more.  I would try three times to the floor.  What I mean by "tap," is to quickly push the pedal.  Don't stomp it, don't ease it, just "tap" it.  (sounds like Happy Gilmore)  If it sets, the motor should noticeably "rev" up.  To cancel the choke, just "tap" it to the floor one more time, after the truck has warmed up.  The easiest way I can tell you to check and see if the choke is your problem, is to disconnect it.  There is a single wire that runs to the side of the carb, hooked into a black, circular housing.  Pull the wire off before you start the truck, and see if that helps with the flooding.  If it does help, then find a new carb guy.  I hope this helps.  If you have any further questions, or problems, feel free to ask.   Jason