Posted by Bob on August 27, 2017 at 21:09:32 from (64.255.159.192):
In Reply to: Re: Starter Issues... posted by kevinthefixer on August 27, 2017 at 19:09:41:
"It does show the two coils in opposite polarity, presumably if the motor starts and over-revs the starter, or even if the keyswitch is released, the second coil should disengage the starter as the power feeds back into the first coil."
Kevin, Kevin, Kevin! As a "fixer" this shouldn't have been the first time you've seen a starter solenoid with two coils, a "pull-in coil" and a "hold coil"! Typical starter solenoids are made like that.
You are reading WAY too much drama into this... the "pull-in coil" is in series with the starter and draws a lot of current /provides a lot of magnetism to initially pull the solenoid closed, then is switched out of the circuit once the solenoid contacts close. The "hold" solenoid winding remains energized as long as you are cranking the engine, and is able to hold the contacts close with a lower current draw than was needed to close them in the first place.
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Today's Featured Article - A 1937 John Deere Unstuck - by Gary Hickman. Here is my story of how I got the pistons out of a 1937 JD B that the engine had been stuck for about 14 years: About 12 years ago my Dad gave me one of the tractors I ran as I was growing up on our farm in central Nebraska. The engine on this tractor, a 1937 John Deere "B", had been stuck for 2 years before he gave it to me. This last spring (1999) I hauled the tractor to our 2 acre lot in St. Libory Nebraska where it joined my antique machinery collection, at that time a 1929 Caterpillar T
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