Generator Question
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Freshman User
Joined: Mar 2008
Posts: 35
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From: Roseville CA
Generator Question
I am looking for the best source of a positive connection for the electric choke I'm adding to the carburetor on my '59 F-100. It has the original electrical system with 12V generator. It has been recommended to me to tap into the stator wire on the generator, as that source is hot only when the engine is running. I'm not sure what a stator wire is exactly, or if my particular generator has one. There are three terminals on the generator, with a three-lead wiring harness attached. There is a larger gauge black and yellow wire attached to the large terminal on the back end of the generator, and there is a black wire attached to a terminal marked F and a white and black wire attached to a terminal marked G on the side of the case. Is one of these a "stator" wire (there are no other wires on the generator)? If not, would the F terminal be a good source of power for the carb's electric choke?
Thread Starter
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Freshman User
Joined: Mar 2008
Posts: 35
Likes: 0
From: Roseville CA
Modified Question
OK, so I've done some searching around the archived threads on the forum and picked up some additional knowledge. My Holley 1835 has been fitted with an electric choke conversion which will require a constant 12V power source. From what I'm gathering in other discussions, my generator not only doesn't have a stator wire, it wouldn't supply the correct voltage if it did. Would one of the terminals on the ignition switch work? I'm sure I could run it off the fuse block, but would like to leave that to the last resort. Even though this old technology is "simple," my limited knowledge of wiring is sufficient only to confuse me further. 
Suggestions?
Suggestions?
Moderator
Joined: Jan 2001
Posts: 56,966
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From: Virginia
Yes, you can run it off one of the ignition wires. Get a testlight or voltmeter and measure the voltage on the terminal you pick, just to make sure it has power in run. If you can, I would try to pick a terminal that was not hot in accessory, if your old truck has that position. The reason being, if the choke is powered for any reason, and the engine is not running, then if later on you do try to start the engine, it's going to be tough because the choke has been powered, and is already off, making a cold engine hard to start.
That's the reason the factory hooked the choke to the stator on the alternator systems. Gm hooked the choke to the oil pressure switch, which accomplishes the same thing. No oil pressure means the engine is not running, so the choke will not activate, even if it's circuit has power.
That's the reason the factory hooked the choke to the stator on the alternator systems. Gm hooked the choke to the oil pressure switch, which accomplishes the same thing. No oil pressure means the engine is not running, so the choke will not activate, even if it's circuit has power.
Cargo Master
Joined: Mar 2008
Posts: 2,562
Likes: 207
From: Washington
You could hook up the electric choke to the output of the generator. It would only have power when the engine is running. Sometimes generators don’t have much output at idle or if the generator died the choke would stay on all the time.
On your Generator the small wire is the field, one of the two large ones is probably a case ground and the other large wire is the power output which goes to the middle terminal on the voltage regulator.
I am just mentioning this in case it makes it easier to wire it up to the electric choke then going back to the fuse box. I would just go with the easiest connection source for the 12 volts.
here is a link with more GEN info
Automobile Electrical Systems - Part 3
On your Generator the small wire is the field, one of the two large ones is probably a case ground and the other large wire is the power output which goes to the middle terminal on the voltage regulator.
I am just mentioning this in case it makes it easier to wire it up to the electric choke then going back to the fuse box. I would just go with the easiest connection source for the 12 volts.
here is a link with more GEN info
Automobile Electrical Systems - Part 3
