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Ignition Wireing

B

Bruce Sturtz

New User
I have a 1966 Ford Industrial tractor that seems to have the stater relay miswired. Also there is a wire in the area of the ignition switch that has a connector broken off and I cannot tell the origion of the wire or where it should be connected.
Does anyone have a wireing diagram that they can send to me?
 
The solonid is new this year and is not activating, even with jumpering it to the positive terminal of the battery.

The I terminal on the solonid has one wire connected to it that goes to the coil. The other terminal has 12 volts on it when the ignition key is turned on.

The engine starts when I jumper the battery positive terminal directly to the starter and with a jumper to the coil.
 
"I" should be ignition - sends juice to the coil when key is on

other one seems like "accessory", sends juice to other stuff that you want to work when key is on

as I recall, Ford uses separate solenoid with 2 big posts for heavy cables and 2 smaller posts for regular sized wiring

one small post should activate the solenoid to start tractor, other small post feeds juice to coil to bypass the resistor but only when solenoid is activated = hotter spark when starting

I'm guessing you might be jumpering to wrong small post or you have bad ground on solenoid base, defective solenoid is 3rd guess
 
The well grounded! solenoid should have 2 big, and 2 small terminals. One will have an I next to it, one will have a S next to it.
The battery cable must be attached to the big stud closest to the S terminal. The S terminal gets 12 volts from the starter button, or S terminal on a Key sw. The I terminal attaches to the coil (non distributor side, not the Resistor if it has one, and not the distributor connection)
The Last big stud connects to the starter motor.
If it is connected with thwe battery cable on the wrong end it will not work. If it still does not work the new relay is bad! Jim
 
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