Posted by Janicholson on August 29, 2013 at 18:13:16 from (74.60.94.18):
In Reply to: magneto/ distributor posted by Vic Bellan on August 29, 2013 at 18:01:25:
The mag turns rapidly to keep the magneto rotation speed at engine speed (to make good electrical power in the primary windings like a generator) This then needs to be reduced to 1/2 engine speed to provide correct timing and direction to the correct plug with the rotor, to fire the cylinder. (4 stroke engines fire after two revolutions) The impulse coupling (snapping noise at starting speeds) is further effort to make the internal generating components move fast enough to fire when cranking by hand at near zero RPM. Jim
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Today's Featured Article - Show Coverage: Godfrey, Illinois Country Days - by Cindy Ladage. Except for last fourth of July's Old Gold show in Springfield, Illinois, I don't remember when it was so hot. Nevertheless, the heat didn't keep vendors and visitors alike from enjoying the third annual Country Day's Event. Jane Elliott said the event was originally a one man show. "Barry Seiler, owner of Country Town Farm Supply store used to invite people up to the Johne Deere store. He would give hats and a free meal for everyone that brings a tractor." Elliott said while this
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