Posted by tom orlando on August 18, 2014 at 12:38:39 from (100.1.52.109):
Hey Guys, I just finished putting my 1939 Farmall A back together and I wired it up this weekend. It is all converted to 12 volt, alternator,regulator,etc. As soon as I hook up the battery the starter begins to crank without the ignition switch being touched. I disconnected the small wire from the switch to the solenoid thinking I might have miss-wired something and got the same results. It has a three terminal solenoid two heavy terminals (one to the battery and one to the starter) and the small switch terminal which goes to the "s" terminal on the ignition switch. with only the two heavy terminals hooked up the starter cranks as soon as you hook up the other battery cable so I figured the solenoid contacts were stuck together. but when I remove the solenoid and check for continuity across the two terminals with an ohm meter I get an open circuit. I then tried another solenoid I had laying around and it does the same exact thing. so, either both solenoids are bad, both check open when checked with an ohm meter, or I"m out of ideas. before I go shell out $25 for another solenoid does anyone have any ideas on whether there is another test I can do on the solenoids to se if they are bad? I sent a couple of pictures for reference
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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