Reply To: 1957 FDE11 carb question

[frankr]

Assemble it correctly and it will work. Pre-assemble everything on the needle, Bushing, packings, nut, etc.  Start the bushing onto the needle just a few threads.

Now push the whole thing into the carb and tighten the packing nut just enough to prevent the bushing from spinning. Now you can proceed to lightly seat the needle and back it out for the preset.

Once final adjustment is made and everybody is happy, tighten the packing nut enough to provide enough friction to hold it in place.