It has no name, it is an updraft model and is labeled as an (XF) on one side and made in U.S.A. on the other side of the float bowl. It has an adjustable high speed jet and a place for an adjusting rod to fit as well as a low speed idle screw. It is made out of pot metal. It think it may be for a Model A Ford. But it may just be a universal replacement carburetor.
It is a Tillotsen. An aftermarket possibly offered by Montgomery Ward or Sears. It runs very well on one of my Ts.
These were also sold by Ford industrial engine dealers into the seventies. I bought a new one for less than thirty bucks back then.
Judging by the throttle knob, fuel inlet and choke rod connection this carb was designed as a direct replacement for the Model A Ford.
Howard Dennis
When I was in High School a Tillotson sold for $15. This one looked like a Tillotson and it is the same color.
I have one on the last T I just bought, also with a Rajo head, so far I found it a cow of a thing to start when cold, I need to learn the tricks and adjustments to it if it's to stay on the car.
I have one on my racer which runs along nicely at 60 mph. I'm quite happy with it.
Garnet
Kerry, You do know the choke rod is an adjustable needle valve right? If memory serves me correctly you open it a 1/4 to a half turn for starting rich and when it warms up you close it down to a smooth idle.
Howard Dennis
Thanks Howard, yes I did know but if only needing a 1/4 to 1/2 turn then that may be my problem, I'm screwing it out to far.
For Model A's it's a full turn from the seat open to start then back to 1/4 to 1/2 turn from the seat to run. Had a guy the didn't drive his Model A very often, every time he got in it he would open the valve a full turn then back a 1/2, next time he would drive it he would open it a full turn from the 1/2 turn then back a 1/2, by time he brought it to us the needle was halfway out and wondered why his gas mileage was so bad.
I run a Tillotson X on my open express with the Rajo head. Took for ever to get the thing to crank start, but have finally figured it out. The only other option is to pull it which limited how far I went from home. Timing was the biggest issue. I open the carb a full turn to start and lean slightly after it's warmed up. Needs to be choked also. My intake is 1" galvanized pipe which probably doesn't help. It's a high class outfit, but does run down the road pretty good.
That is a Tillotson Model A / B replacement carburetor. They make Model A's sound wrong.
I have one on one of my T's. I have finally got a handle on how to crank start it. I choke 2 quarter turns with ignition off. Retard spark and move throttle down about 1/2 inch, turn ignition on and it sometimes starts on next quarter turn. If not, I repeat above and it usually starts. It appears on mine it just needs more throttle.