Tractor Repair: 706 IH carberator, carberator, oem number

Question
I rcently purchased a carb rebuild kit for my 706 IH.  I tore it apart and the kit only had the jet and needle and gaskets I had to use.  I put it back together and put it on the tractor and it just poured fuel out of it.  I thought the float was stuck so I tore it apart again and adjusted the float to 1 inch and 5 16ths like it said and put it all back together left the air intake off to see the choke flapper and turned the engine over and gas just came pouring out of the carb again?  am lost for solutions ?  If nothing else would like to know where to find the OEM number for the carb so if all else fails I will order a rebuilt carb or send it in to get rebuilt or fixed? O maybe you would have a suggestion on where to find directions on how to rebuild or fix the problem with diagrams?

Answer
Hello,

  I have seen two different situations that caused the fuel to run out after rebuilding the carburetor.  On one of them, the float was rubbing on the inside of the bowl when the carburetor was assembled, so the float could not move.  I had to bend the float slightly to make it narrower.  You can tell if the float is free to move by turning the carburetor upside down and then upright again after assembling it.  You should be able to hear the float moving up and down inside.  On my own tractor, I had a different problem.  On most carburetors, the float pin is loose, but is locked in place once the carburetor is assembled so that the pin can't slide out of the bracket.  But on mine, there is enough space for the pin to slide out of the bracket on one end which causes the float to tilt and bind up.  The bracket is split on one side so that you can squeeze it together with pliers so that the pin is pinched inside, locking it in place.  Once I figured that out, the problem was solved but it took three tries until I realized what was wrong.  There is the possibility of defective parts, also.  There will be a manufacturer's model number either on a tag attached to the carburetor, or numbers stamped into the casting.  This is not an IH part number, but will help you to match up the correct one, since many different brands and models of carburetors are sometimes used on the same model tractor.