Unless you are willing to rigorously manage your electrical budget when cruising at low RPM, the 3 wire alternator wiring diagram is recommended for improving your vehicle. Enjoy banner ad-free browsing with Hot Rod Forum Plus. In many other autos, the alternator output line connects directly to the battery (or to the battery positive cable at the starter solenoid). This in turn powers the exciter rotor. Usually, this is a direct connection from the alternator output back to the sense terminal. Unplug the Negative Terminal of the Vehicle Battery, 2. As a result, a rectifier circuit is installed in the alternator, converting three-phase AC to DC. The alternator is the most critical component of a cars engine and requires no maintenance. Enthusiastswere noticing that their voltmeters were reading low voltage while driving, even though their battery never went low. I think I am just going to go to the junk yard tear out an indicator light That takes care of two wires now what abou that pesky 3rd wire, the blue one that is supposed to be sense remote voltage to tickle the internal regulator. Youre held hostage at the mercy of your electrical system. Please refer to our discussion about alternator overcharging to ensure that yours is in good working order.. 3 wire alternators are basic, but if youre not careful, you could end up with major electrical problems. Here's a desciption of the wires: In the above pictures, you can see a black wire that is connected to the alternator mounting bracket. One of those choices is between a 1-wire and 3-wire alternator. You dont have to be an expert to complete the task; all you have to do is route the wires appropriately! Hooking or unhooking it during running might cause damage to the alternator, but how can you think that applying over 60 v. on a system with 12 v. components wouldn't damage anything? Tuff Stuff shows us how much easier it is to wire a 1-wire alternator. Connecting the battery negative terminal to the AC Delco 3 wire alternator wiring diagram is the final step in wiring it to your vehicle. It creates electricity, serves as a power source for automobiles, and recharges the battery. How to wire a Delco alternator to excite it to charge? - JustAnswer One end of the charge light connects to the output of the POWERCELL that is powering the ignition in the car. The 3 wire alternator detects the voltage at the fuse block and the ignition, so it can regulate the charge and adjust it when necessary. The rest of the time its only going to put out what the system is calling for. All rights reserved. The only time an alternator will output its max rated amperage is when at highway speed and the battery is dead. How to Wire a 1 Wire/3 Wire Alternator (10SI Delco Style) to - YouTube How do you excite an alternator? Save my name, email, and website in this browser for the next time I comment. Overview Of 3 Wire Alternator Wiring Diagram, Connections In A Wire Alternator Wiring Diagram, Electromechanical Voltage Regulator (External). Due to voltage loss through the wiring, you will actually lose voltage by the time it gets to the firewall and distributor! JavaScript is disabled. You don't hear that mentioned much because most don't know that. Required fields are marked *. Connecting the battery negative cable is the final step in upgrading your antique vehicle with a 3 wire alternator wiring diagram. The first is the large lug that connects to the battery. The alternators terminal 2 is connected to the alternators positive battery wire post via a sensing wire. All of the components work together to monitor and manage power so that different components of the cars engine can get the energy they require. Every car should have one by default regardless of the alternator type. Posted: Tue Dec 13, 2016 3:24 pm Post subject: Re: alternator exciter wire. Our team is available Monday to Saturday from 9am to 6pm to address your inquiries and offer guidance. Without this diode, the engine will continue to run even though you have turned off the ignition output. 1. The alternator needs at least 13.8 volts to recharge the battery and power the system, but thats only on the cusp of whats considered the absolute minimum. DISCLAIMER: All wallpapers and backgrounds found here are believed to be in the "public domain". Trevor Anderson comes from an eclectic background of technical and creative disciplines. The three-phase armature winding is found in the stator, while field winding is found in the rotor. TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. Final Verdict, Wire Alternator Wiring Diagram. The major function of an alternator is to give electricity to electrical components such as lights, fans, and windshield wipers in conjunction with the battery. Ans: The main hub is connected to the battery through the battery charging wire. The battery charging line in these systems merely charges the battery and does not operate the electrical system. Mechanics must replace the complete alternator if the regulator fails or wears out in todays alternator. No idea what it does, but you can verify the terminals 1 letter code online. After youve finished wiring, youll be able to utilize it and operate with ease. 6 to 14.