Quote:
Originally Posted by SAXBY2
Some posters suggest 22, 25, 28 degrees or other numbers. Somewhere it's noted that each quadrant notch is 4 degrees, and if so, pulling the lever down 5 notches would be 20 degrees advance?
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It doesn't really work that way in practice. The quadrants are different shapes on different types of columns, and because there's a linkage, offset, and a 90° rotation between the spark lever and the distributor upper plate, you don't get a 1:1 mapping between small movements on the lever and small movements at the distributor.