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Discussion Topic:
'47 Ford Starting Circuit
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Bill E Bob |
10-06-2017 @ 2:30 AM
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Member
Posts: 85
Joined: Apr 2017
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If you will note my signature on an above post (10/03/2017), you will see I am indeed in the market for an original type solenoid. Just wanted to make sure my thinking was correct regarding BOTH types of solenoids/switches. I DO wish to keep this vehicle as close to original as possible, while learning as much as can. Thank you to all for your knowledge, expertise and willingness to assist. William(feeling pretty humble)Brown
This message was edited by Bill E Bob on 10-6-17 @ 3:18 AM
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len47merc |
10-05-2017 @ 9:19 AM
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Senior
Posts: 1165
Joined: Oct 2013
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Strongly agree with TomO.
Steve
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TomO |
10-05-2017 @ 6:46 AM
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Senior
Posts: 7263
Joined: Oct 2009
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Why don't you just get the correct type solenoid? It will simplify the wiring and trouble shooting. Wen modifications are made and you ask for help on the Forum, you have to explain the modifications each time in order to get accurate advice. Rock Auto has an after market type solenoid for less than $15 and you can buy the original type for less than $35.
Tom
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40cpe |
10-05-2017 @ 6:12 AM
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Member
Posts: 477
Joined: Jan 2010
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Correct. The original starter button operated independently of the ignition switch.
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Bill E Bob |
10-04-2017 @ 3:22 PM
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Member
Posts: 85
Joined: Apr 2017
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Well, the car came with a hand wired 2 pole switch and a solenoid with a single small terminal that requires voltage for activation. Were I to go with a non original 2 pole switch I would run a wire from the ignition switch "on" terminal to one pole on the switch and from the other switch pole to the solenoid. Obviously, the original requires the small terminal on the solenoid to be energized, and the circuit completed when the grounded button is pushed. I assume this leaves the starter switch "energized" so to speak, so it operates independently of the ignition switch. Am I close!!?? William(still juggling electrons)Brown
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supereal |
10-04-2017 @ 8:58 AM
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Senior
Posts: 6819
Joined: Oct 2009
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If a starter solenoid has two small terminals, they are connected to the ends of the internal coil. This was done to make the solenoid a "universal" replacement. If the starter button is original with one terminal, ground the button sh*ll to the dash. If the button has two wires, it furnishes battery to the solenoid, and one of the small terminals on the solenoid should be grounded. If the button has one wire, one of the small terminals is to be connected to the battery side of the solenoid, the other to the button wire. I know this is confusing, and has perplexed many owners.
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Bill E Bob |
10-03-2017 @ 5:33 PM
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Member
Posts: 85
Joined: Apr 2017
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Thanks to all--question answered. William(searching for correct starter solenoid )Brown
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TomO |
10-03-2017 @ 5:29 PM
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Senior
Posts: 7263
Joined: Oct 2009
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The correct solenoid will measure 6 volts at the center post and when you ground this post, the solenoid will energize and connect the starter to the battery. One end of the solenoid pick coil is wired to the battery terminal via an internal wire and the other end is wired to the center terminal. There are 3 post solenoids that require voltage be supplied to the center terminal. They require a 2 terminal starter button and are not correct for a 47 Ford.
Tom
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ford38v8 |
10-03-2017 @ 4:04 PM
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Senior
Posts: 2774
Joined: Oct 2009
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I think you answered your own question. The correct solenoid for a Ford requires only one wire to ground from the starter button. Solenoids can look alike, but are controlled differently.
Alan
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Bill E Bob |
10-03-2017 @ 2:53 PM
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Member
Posts: 85
Joined: Apr 2017
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Just rewired my '47 Fordor Super Deluxe according to the proper diagram, however, no joy with the starter button. Button tests OK, solenoid operates when the attachment point for the starter button wire is energized. Seems to me the single pole starter button requires the wire to be energized and completes the circuit to ground when pressed. "Current" solenoid requires a 2 pole starter button with one wire from battery and one wire to the solenoid which is then energized when the button is pushed. Feel I'm dealing with an aftermarket solenoid, but can't get my head wrapped around the circuitry that would make a single pole switch viable. ANY assistance will be MOST appreciated. William (electrically impaired) Brown
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