1 wire starter.

1986 JEEP CJ7
100,000 MILES • V8 • 4WD • AUTOMATIC
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AARON'S
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I have a jeep with the old style starters that have only one post on the rear of the starter for 12v and ground via the case. The solenoid is built into the starter for this reason. When I apply 12v to post and place negative cable from battery charger on the case the starter gets very hot and cranks slow. Am I bench testing this starter wrong? It's brand new. Had advanced auto test it they said it was good. I have power from ignition to relay and my power wire from battery to bat side of relay and other 12v wire to starter. The solenoid clicks and 12 v goes to starter but still no start. As I stated I can't even bench test the new starter
Jan 18, 2016 at 4:34 PM
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HMAC300
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battery chargers will not allow a starter to turn over as fast due to not enough amperage. see diagram for starter power shold be applied to where longer arrows are to work properly. make sure it 's the correct starter.
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Jan 18, 2016 at 4:41 PM
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AARON'S
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Thanks bud, exactly correct. It was only a 200amp charger and it requires about 600 to effectively turn over. The cause of starter failure was a mis placed coil wire to the ford 4 Post starting solenoid. The motor would start and the spark from the misplaced coil wire was causing starter to remain engaged. 79 cj7
Jan 23, 2016 at 5:41 AM
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AARON'S
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To add to above statement^ I also replaced the battery with the proper cold cranking amps.
Jan 23, 2016 at 5:43 AM