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Allis Chalmers model c wiring harness
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soppins View Drop Down
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Joined: 02 Jul 2019
Location: Texas
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote soppins Quote  Post ReplyReply Direct Link To This Post Topic: Allis Chalmers model c wiring harness
    Posted: 21 Aug 2019 at 8:51pm
My son is restoring an Allis Chalmers model c for his 4-H Ag Mechanics project. He is trying to find out how they ran the wiring harness from the factory across the block to the front. Also was there two insulated posts on the radiator to attach the headlights or just one on the left side. Thanks for your help.
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Lon(MN) View Drop Down
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One insulated post on the left
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Steve in NJ View Drop Down
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Points: 11549 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 22 Aug 2019 at 8:22am
The wiring harness ran from the instrument box, under the Battery box (if equipped) behind the air filter, dropped under the Carburetor to the Generator. From there, the Headlight lead went to the insulated junction attached to the fan shroud, through a rubber grommet in the fan shround out to each Headlamp. The Mag or Distributor circuit went up and around the front of the engine (valve cover area) around the corner to the Mag or Distributor. (whichever it was equipped with.) If it had a Battery ignition (Distributor) that circuit ran to the negative side of the coil which was mounted off of the Distributor drive via a coil bracket. The positive side of the coil went to the Distributor. (Positive ground systems)    HTH
Steve@B&B
39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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Gerald J. View Drop Down
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Points: 5636 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gerald J. Quote  Post ReplyReply Direct Link To This Post Posted: 22 Aug 2019 at 9:11am
The shop manual should have some details:

http://geraldj.networkiowa.com/Trees/Allis-Chalmers-G-B-C-CA-Service.pdf

Gerald J.
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