Why does my engine start turning over right when I hook up the positive battery connection.?

Question:
I have an old ford 302 in by old boat. I just got the starter rebuilt and there is a new solanoid already there. I was having problems before when I tryed to start the boat, sometimes it would turn over and then stop when I turned the key off, then sometimes when I turned the key off, the motor would keep turning over and over. So I got the starter rebuilt thinking that was the problem. But now that I put the starter in and touched the wire coming off of the solanoid to the positive side of the battery, the motor starts turning over even with the key in the off position. I also disconnected the battery wire from the ignition switch and that did nothing. HELP!

Answers:

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The fact that you had the starter rebuilt indicates that you don't have the slightest idea how the solenoid works or what it does. Get some help before you wreck the starter and the flywheel.

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you have a wire hooked up wrong on the solenoid,if there is two small wires one goes to the coil to give it full voltage when you crank.the other excites the solenoid to give voltage to the starter.

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sounds to like you need a new ignition switch.the switch isnt shutting off the power.

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Make sure you have the solenoid hooked up properly. Does it have two large wire connections and two small wire connections? If so, disconnect the two small wires, because those are the control wires. They tell the solenoid to turn on and off depending on if they are getting 12v or not. I would suspect one of these is hot wired causing your problem. I know it sounds silly, but also make sure you didn't put the wrong cable on the wrong post of the solenoid.

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The problem was not in the starter in the first place
starters dont turn over unless there is power to them
There is no power to the starter unless the solenoid is activated
The solenoid is not activated unless the key is in the start position.
The problen is in the ignition switch
Replace the switch and you will be on your happy way.

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Your ignition cylinder where the key goes in is going bad. Sometimes when they get ready to go completly out they start acting real fickle like that sometimes, other times the snap ring on the inside just goes out. Its really not a big fixer. The igniton cylinders can be bought at your average auto parts store if you want to get real simple, but the ones you get at the boat store are known to handle more amperage. Good luck.
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