The Stovebolt Site Forums The Parking Lot Big Bolts 1950 4400

If it was my carb, I would be tapping on the shaft to try to get it to move. That is exactly what I had to do with the carb on my '62 when I let it sit long enough for the mice to build a nest. I would pull the throttle plate if I could get at the screws to grind the back end off, they are peened to prevent them falling into the engine. I would tap the shaft endwise and sideways all around and both ends. The rust/corrosion usually yields to physical force but of course so do the shaft and the bore it goes through, use caution.