Farrar's car blog

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That's how you adjust a Carter (the needle valve rests between the float and the pivot).

Some people get all scientific with their float settings (that's why they give you that ridiculous little ruler in a rebuild kit). Just set it so the float is level when the needle valve is all the way seated.

It is possible to set the float so high it hits the top gasket and stops moving before the needle valve is fully seated.

Remember also that your wonderful brass float could be leaking and sinking. That's why they went to foam floats in the first place. Submerge the float in a bowl of water and watch for bubbles (turn it around in the bowl so all four sides of the seam have a chance to be on top).

Bill Robertson
#5939