Used to mean something else in the world of machinery and auto mechanics. Old school stuff. There is a screw that holds the distributor cap in place. A mechanic would loosen that screw and rotate the whole distributor cap very slightly, maybe 5° or so, the thing is round, so that’s a really small portion of a circle. So one could turn it clockwise or counterclockwise to advance or retard the timing.
Used to mean something else in the world of machinery and auto mechanics. Old school stuff. There is a screw that holds the distributor cap in place. A mechanic would loosen that screw and rotate the whole distributor cap very slightly, maybe 5° or so, the thing is round, so that’s a really small portion of a circle. So one could turn it clockwise or counterclockwise to advance or retard the timing.