Alternator Ground Wire Burned

My fog lights and my tail light work, but no headlights. You will only need to connect your main battery charging wire to the alternator output terminal post. After 50,000 or so miles, OEM carbon-core ignition wires may have too much internal resistance that weakens the spark and increases the risk of misfire. I have a 1994 toyota pickup 2wd. An yes, the white wire off the alternator goes to the tail, stop and dome fuses along the way to the battery. com® order is track-able, meaning you'll know exactly where your Alternator Wiring Harness is at every step of the shipping process. In most modern systems, the electrical current passing through the filament of the warning light is what energizes a circuit in the alternator to start charging. Normally the engine has a ground strap between it and the firewall which provides an excellent ground. The most common manifestation is alternator whine superimposed (primarily) on the transmitted signal. be careful when working around that terminal on the alternator with metal tools or jewelry or whatever. Chop the burned wire off at the point where clean wire is found, solder in the same gauge wire and hardwire it to the pin on the alternator without using a plug. Just installed on my 2000 Camaro SS, Had to replace alternator and i may have snapped the old wire pulling the alternator but I think it was bad and it my have been why may old alternator stopped charging. If an automotive alternator (Question misses the assertion of where the alternator is, and what drives the alterntor), is deemed to be ‘overcharging’, then you need to look at all of the things that can cause a reduction in current. Internal voltage regulator, no field wire needed. battery (+) to alternator main power wire 2. When working with your Model A used stranded wire for the best results. That wire should be of similar gauge as your hot wire to the battery connection, and it needs to be mounted to the engine block, which should also have a good connection to. Connector Plug Harness Pigtail Pigtail Wire for Chevy Alternator Gm Delco 4-way. Wiring Diagrams. which is basically what you have. the car has been through t. Otherwise add a new wire (red) from the - on the ammeter to the Positive Battery Terminal. (and then from the alternator on to the glow plug module's 100 amp fuse) The schematic just shows separate "ground" points for the alternator, starter and (after the isolation switch) the battery. After you have installed the positive ground rectifier you must wire the alternator using the red jumper shown above. Connect the output cable (see cable sizing recommendations below) ground, field wire, stator (tach) wire if needed and other necessary wiring. The field is powered up when the key is turned on and the regulator controls the output by varying the ground. Another area that little is paid attention to is the ground. One is ground to the chassis or engine block and "BAT" to the battery. 1967 - 1969 Firebird Alternator Conversion Wiring Harness Kit for 1986 and Newer Alternators This kit is for models with a external voltage regulator that wants to go to a internal alternator. so its time to replace it any ideas on this. Re: Let's figure out alternator wiring, once and for all! HELP! ok to explain the warning lamp, when the engine is running the regulator rapidly switches the field current on and off, when it's on it's 12 volts+ when off it's ground. Traditionally, the use of car alternators is discouraged in favor of homemade slow running axial flux generators. What Gauge Wire Do You Need? A performance alternator really doesn't require much in the way of modifications. One thing I have noticed was that there is a wire (ground?) near the alternator that is just there (not hooked up to anything). Remove the large, thick ground strap as well. If ANY other spark plug Wire fires besides the one the rotor is aligned with, the distributor cap and rotor should be replaced. What Can Go Wrong. "This the 3rd one"… burn up, why? In some cases the conclusion is drawn that "I must be getting poor quality units; they just don't last very long…it works for a while then the light comes on; this is the 3rd one in 6 months!" Or I finally went to the Dealer and got a good one, and it's been working fine". Is this hook up the same without the resister? Reply * Bob Kellogg 06/08/2018 - 21:16 My Ford 641 had a 6vdc starter with positive ground. If you are careful the addition of the alternator can be accomplished without cutting any of the original wires. I will run a few more test tomorrow. Repairing Charging System Problems. Waiting to find out how much this will cost us to fix we are using only VW genuine parts on it. Id check the bundle of wires comming up from below by the starter up over the intake that run behind the alternator,seems a bad place on some where wear and burn thru can happen. Upgrading your chassis ground will help your car's electrical system perform it's best. Once the voltage regulator turns on, the alternator will remain on and charging until the engine comes to a complete stop. If all is well with the signal wire call the local alternator shop and ask whether an internal failure will cause this symptom. However, as per the Mando alternator wiring diagram, there is a wire on both the exciter terminal and the sensing terminal. Auto-Shutdown Module. Two wire means that you use the main battery wire to the back of the alternator and also ignition wire to the #1 terminal to activate the. Check to see if the system will charge now. When I hooked up my volt meter to battery ground and battery positive I got a reading of 12. It burned the ground clean off the alternator the first time then I fixed the wiring and the second time it did it again but on the ground running to the fender but it was the same wire but on the other side of the plug in. GROUND SCREW (-) (Two Locations) 5. Alternator Rating Wire Size Available Kits 75 Amps 10 gauge High Output Alternator Wiring Kit 555 -10510 100 Amps 8 gauge 150 Amps 6 gauge 200 Amps 4 gauge It is very important to use the correct wire size to connect the alternator to the battery. Chop the burned wire off at the point where clean wire is found, solder in the same gauge wire and hardwire it to the pin on the alternator without using a plug. If you work on this yourself be sure to disconnect the ground lead to the battery before working on it as that wire is hot to the battery. Also, a wire that is to small when used on a high output alternator can cause the power to back up within the alternator making it overheat, burn up and fail. Repairing Charging System Problems. But I only have a 60 to 90-amp alternator. The two field connections at the alternator should show continuity between the two of them, but NOT to ground (case) of the alternator You will be lucky if you didn't burn up "some other" wire. "from the alternator frame to the voltage regulator. In this Tech Tip, we explain why this is important, what are the recommended battery wire sizes, and what can go wrong when inadequate battery wires are used. Internal wiring for each junction block is also provided for better understanding of connection within a junction block. Normally the engine has a ground strap between it and the firewall which provides an excellent ground. housing to the engine block. Run a wire, preferably with an inline fuse in it, from the stud on the back of the alternator directly to the passenger side battery. The wire that burnt was the wire on the bottom of the starter solenoid that is suppose to go to the NSS on the transmission. SARASOTA — Authorities say a 23-year-old man was shocked and burned when a power line fell on a lift truck that he was working on. To do that you need to know How ignition systems work. When a specific voltage is met, the the computer then sends a signal to the alternator to activate it (PWM). Check that wiring to the alternator is not broken or disconnected. Okay, so I looked a lot harder at the wire diagram(the one that TOYOTADAVE posted up). Note: the yellow wire was added by me for future use, and is NOT in a stck harness. To get a larger and/or longer spark you need to throw more energy at the spark plug. My question is "what do to do with the battery field. Your trusted experts at Pep Boys have compiled a list of warning signs to look for in order to help avoid alternator failure. The 3G has a 130 amp capacity, so you wire the power side with 4 gauge wire. Patterson might’ve already won a Super Bowl with the New. The problem is the wire keeps burning and even yesterday after getting my oil changed I found out the wire was completely burned through and split in two. There have been many problems with powder coated or painted brackets not allowing the case to ground properly. The wiring diagrams I found on this site are great, but I'd really be helped to see a close up picture of how it's. Brown wire: Goes to the "GEN" light. Note the reg is attached using expending rubber wellnuts, and must have a ground wire. Running a ground lead from the engine back to a trunk mounted battery is a common battery wiring mistakes. Connector Plug Harness Pigtail Pigtail Wire for Chevy Alternator Gm Delco 4-way. The first wire in the circuit of a typical alternator is the ground, although sometimes this connection is made through the alternator's case instead of through a separate wire connection. My questions are: 1. If you removed battery to chassis you would have to add engine to chassis wiring. Connect the Green/Yellow and Green/Black wires together. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. 1-WIRE MINI ALTERNATOR 12 Volt - 35 Amp Perfect for High Performance where a light-weight alternator is needed. Case closed. Does anyone out there own a 950 John Deere that also doesn't mind taking a photo of the way the alternator and starter are wired up. Preferably, run a ground wire to the front. Check that wiring to the alternator is not broken or disconnected. DADU: At least 11 people returning from a wedding lost their lives on Sunday when their bus caught fire as it hit a low-hanging high-tension electricity wire near Khairpur. Sometimes parallel arcing faults (shorts or ground faults) will not even trip a breaker, if there is enough resistance the breaker just sees it as a load. So to summarize: 1) Is my method of testing alternator output. If the alternator is not producing enough voltage the battery can go dead. To do this you would need to put a high-amp ampmeter in series with the main red wire (D+) to read the amperage going into the battery. First is the heavy gauge wire that is attached to the main post of the alternator that goes right to the battery. Alternator Frequently Asked Questions. This article reviews electrical faults associated with wiring or with wiring devices can cause structure ignitions and points out where further research is needed to prevent fire hazards in electrical wiring. You say you tested the alternator and its good. "This the 3rd one"… burn up, why? In some cases the conclusion is drawn that "I must be getting poor quality units; they just don't last very long…it works for a while then the light comes on; this is the 3rd one in 6 months!" Or I finally went to the Dealer and got a good one, and it's been working fine". I can build you a 6,8,12 or 24volt alternator in a Delco case. This voltage will soon decrease as the regulator in the alternator senses the starter battery voltage and gradually cuts back. Hey Carl, the alternator output is 15 volts from the post, and I verified that the case ground is good (. This is why perhaps the most important cable among the Big 3 is the engine ground strap, as this is what connects the alternator ground to the vehicle's chassis. 0 that has a burnt cable in the fuse box. Left unchecked, voltage drop causes countless unsolved electrical mysteries, especially when it infects the ground side of a circuit. Start as stated with the negative post of the battery. What is a one wire alternator? How much amperage do I need? Amperage Load Calculator. This month we collaborated with Nik Sharma from A Brown Table to create a new recipe with Tahmina saffron. The unique ground routing for different systems is for very specific reasons. Our editors review and recommend products to help you buy the stuff you need. 6 VOLT to 12 VOLT ELECTRICAL SYSTEM CONVERSION. If the rotor is open (broken wire), the brushes worn out, the charge lamp burnt out or some other fault in this circuit, curent will not flow, the charge light will not illuminate and the alternator will not operate correctly. Does anyone know the format mp3 files should be burned in order for them to be playable ? I used a DVD-R disc and burned the files as "Audio files", but. One is ground to the chassis or engine block and "BAT" to the battery. That wire should be of similar gauge as your hot wire to the battery connection, and it needs to be mounted to the engine block, which should also have a good connection to. 150 Amp Alt. 2 volts, then start your car and rev the engine to 2,000 RPM. Sti Controller Wiring Diagram - Sti Wiring Diagram | Wiring Library. If you are experiencing a problem with alternator output you can test the ground circuit by making a temporary ground wire directly from the alternator housing to the chassis or body, (Bare metal). The following alternator information has been created as a guide for charging system diagnosis and troubleshooting the alternator. In fact, the alternator may fail to charge if that light bulb is burned out. Once you find a match, find the AC/DC setting in the. 2012 RAM 3500 featuring 120-MPH primary speedometer, Dual-note horn, Front/rear side curtain airbags. If you have no voltmeter you can still test it. or does it just run from the alt to the battery. The wire that comes from the alternator to the fuse box on top of battery is getting so hot that it melted through the fuse box holder, the fuse did not break and the wire starts getting hot as soon as i turn on the engine. 3L Engine 1. Check the wire connections you made to the alternator. If you ground this wire and the instrument cluster fuse (5amp)is good will illuminate the light. Indicators that warn of an impending alternator problem can include the dashboard warning lights, a growling or whining noise from the engine compartment, and the smell of burning rubber or electrical wires. Luckily, it has not shorted to any other wires that I can find. Wire Connections: Be sure all terminals are crimped. ALTERNATOR Dual Circuit - Rectifier Plug Type TESTING FOR SHORT IN ALTERNATOR SYSTEM Disconnect charging lead from battery, and connect charge lead test lamp in series between battery and charge lead. One bar is ground (brown wire) and the other is positive "12V" out (white/red wire). It stands to reason that the ground side handles just a much current, so it needs to be 4 gauge too. locations on back side of the Alternator. If the link still burns, the fault is in the wiring. a lose or bad conection can cause heat. That is not the case here. Kristallnacht, Tree of Life. Alternator Light Stays On. Depending on the year of your VW, the regulator can be found under the rear seat (left side) or be mounted right on top the generator. On the left is the "Gen/Alt" light, and on the right is the "Oil" light. corrosion or water damage. I replaced it with a 24 volt but the wiring harness has been partially ripped out during the previous work on the tractor. Also replace the boot cover, it is important. MOST LIKELY you have a short in that blue wire or right IN the alternator. Ok guys heres a small update I spoke to a tech from American AutoWire where I bought the harness from via email about my problem and this is what he said "The wire you describe is a resistance (Brown / White Strip) type special wire to excite the alternator. If the diodes are toasted in the alternator a new wire will burn as soon as it is connected. There are certain signs of a bad alternator to look for: While running the car, note the brightness of the interior lights. Other than the chassis ground, the only wire connection is the big wire to the power system. If it is 0 volts, then verify voltage on the second field wire and/or test the alternator. my alternator was going dead. Normally the engine has a ground strap between it and the firewall which provides an excellent ground. Delco CS 130 has increased cooling and ball bearings for higher outputs and longer life. On some models, it is possible to isolate the alternator from the regulator by grounding the field terminal. It's a triangular 3-terminal plug, but with just two wires in it. Charging System Circuit. These last two wires tell the alternator what the battery voltage is and when to start charging the battery. After you have installed the positive ground rectifier you must wire the alternator using the red jumper shown above. I have it going to ground because a while back my starter would not shut off unless I removed the NSS wire from the solenoid (weird I know) and grounding it was the only way to get the Jeep to start. When the engine spins the alternator around, the alternator induces an AC voltage that is converted to DC and used to charge the car's electrical system. The only other wire was a extra case ground to make the mounting hardware was not a weak ground Summit was great on this issue, I had another one on the way and UPS was at my door the next day with a return label and took the defective one. CAMARO WIRING INFO. GM has many different alternators and each has its own alternator wiring diagram and alternator symptoms. And no, all cases do not have a separate ground wire. Panel Ground Wire Must Be Connected to Instrument Terminal That Has an 8-Gauge Black (Ground) Harness Wire Connected to it. We can deal with two wires. it will create a direct battery short, spark all over the place, melt things and burn you. Connect the output cable (see cable sizing recommendations below) ground, field wire, stator (tach) wire if needed and other necessary wiring. Wiring…this is without doubt where many people get it wrong and end up with a system that may work, BUT barely, and nowhere near as well as it could and should, doing it right can double the usable capacity of your auxiliary batteries over and above what many people normally have, and it will also help them charge much faster, and in turn they will last longer too. Alternator Noise. Be aware that the wires are quite old, are subject to heat from the engine, and may be more brittle than you would think. This is my 68 above. To check output with a load tester, connect tester leads as described by the manufacturer, as you may have either an inductive (clip-on) amp pickup type or a non- inductive type tester. The condition of connections to ground is just as important as the hot wire connection because the current must return to the battery via the ground connection. The regulator puts 12 volts here to turn off the gen light if the alternator is charging properly. Wiring Diagrams: 57 Chevy -150-210 Belair wiring diagram - Drawing A. See also - Instrument Cluster. Make sure it is not touching anything (tape it if you have to)-If the discharge light is on, you've got a short to ground between the pod and the alternator exciter wire. If your original alternator was 35 amps or less, we also recommend that you change the ammeter wiring to a thicker gauge. 3 liter 2007 and later 1500 series chevy trucks The alternator is "switched" on when the ecm sends 5 volts to one of the two wires in the two wire pigtail. To create a compatible system it may be necessary to modify the the equipment wiring harness. I have a 1994 toyota pickup 2wd. This is why perhaps the most important cable among the Big 3 is the engine ground strap, as this is what connects the alternator ground to the vehicle's chassis. How to Rewind an Alternator: This will cover rewinding of an alternator stator for use in a wind turbine generator. (This wire should match charge. were getting into a bit of an arguement over at allfordmustangs. Use the PennTex Four-Step Charging System Test Form & Full Field Test Form to check the system condition. Frank Drury: has 12 volt alternator single wire with distributor no lights: Ted Walters: I am really in a fix. I would think this would fit 1996-2005 S10, GMC Jimmy, Sonoma also, but. The points at which the two wires connect to the solenoid-to-alternator cable are about 23-1/8" apart. Re: Melted small wire from battery NEG to alternator Originally Posted by RickB If the wire is connected to the negative battery terminal, it is a secure ground for the alternator, not an exitation wire or other signal wire. To check an alternator, pop your vehicle's hood and hook up a voltmeter to the car's battery by connecting the red lead to the positive terminal and the black lead to the negative terminal. 1-WIRE MINI ALTERNATOR 12 Volt - 35 Amp Perfect for High Performance where a light-weight alternator is needed. • B is the alternator output wire that supplies current to the battery. That wire should be of similar gauge as your hot wire to the battery connection, and it needs to be mounted to the engine block, which should also have a good connection to. Its in the pic below. One of the key differences is how the internal voltage regulator determines charge rate. There may also be internal damage to the connection inside the alternator and that should at least be inspected. So I pulled the red wire off the coil and looped it into the d+ wire going to the idiot light which now lights at all times. Charging System Upgrade Kits Product Improvement – All Kits Now Include Translucent Black Ground Cables! When upgrading your alternator to a unit capable of higher output, it is also necessary to upgrade your vehicle’s wiring. Delco CS 130 has increased cooling and ball bearings for higher outputs and longer life. So to summarize: 1) Is my method of testing alternator output. A relatively modern alternator only needs two wires to do its job. They now become one leg of your system. Also please check out the statistics and reliability analysis of Chrysler Pt Cruiser based on all problems reported for the Pt Cruiser. The second field wire is connected to the outside plug on the newer voltage regulator (two plugs, one is in the middle, one is on the outside). wire to alternator. Either way it will be a good grounding point. …alternator number 1 and 2 it looks as though 1 is hooked to Batt on Alternator with 10 ga wire and 2 goes to coil BUT this is a hook up using a ballast resister. One bar is ground (brown wire) and the other is positive "12V" out (white/red wire). Note the three screws that hold the brush holder assembly and voltage regulator, all three are insulated. In most cases a failing alternator will trigger the Battery light to come on. or does it just run from the alt to the battery. The bolt and nut on the face of the VR has the wire going to the alternator DF. Uhh, a missing ground wire does not tell the VR to charge. They now become one leg of your system. If everything is wired correctly the only thing that would cause the wire from the alternator to the regulator to burn is a failed regulator… Unless the burn occurs in the wire before reaching the regulator. Internal voltage regulator, no field wire needed. “WHERE DO I PUT THE 3rd WIRE ON MY 1-WIRE ALTERNATOR?!” “Where do I put the third wire on my one-wire alternator?!” Certainly a valid question, and a common source of charging system confusion. 1- 12 volt negative ground brand new one-wire alternator; All brackets, bolts and mounting Hardware. volts above battery voltage), connect a jumper wire between regulator base and alternator frame. net Allentown, PA '82 928. Connect regulator BAT wire to output of alternator 3. Now that the alternator is in, working and tested, on to. 704-748-1890. One is ground to the chassis or engine block and "BAT" to the battery. the fat wire goes to the amp meter. These have diodes stamped into them that engage the two horizontal buss bars in the middle. Brown wire: Goes to the "GEN" light. This is important as the alternator is designed for negative ground and the alternator regulator may be damaged if it is wired as positive ground. There have been many problems with powder coated or painted brackets not allowing the case to ground properly. Disconnect the battery! Remove original regulator (control box) and dynamo (generator) then study the schematic below. Charging System - General Information. First is the heavy gauge wire that is attached to the main post of the alternator that goes right to the battery. However, as per the Mando alternator wiring diagram, there is a wire on both the exciter terminal and the sensing terminal. 2012 RAM 3500 featuring 120-MPH primary speedometer, Dual-note horn, Front/rear side curtain airbags. Even with the plug unplugged, the alternator is still putting 15. In fact, the alternator may fail to charge if that light bulb is burned out. If this wire burned then the alternator must have shorted to ground causing this wire. Some common causes of alternator problems include wear and tear, a bad battery, a lost ground and a slipping belt. battery (+) to alternator main power wire 2. is a manufacturer of Heavy Duty Charging Systems, High Idler Devices, and Charging System. I bought a ground wire kit to replace my current ground wires since one started fraying. com this guys wants to replace his ampmeter with a voltmeter. which one do you suggest? what type of wires are you using and how many strand count? also. Is the wire a ground wire? 2. Alternator Noise. There are certain signs of a bad alternator to look for: While running the car, note the brightness of the interior lights. Two wire means that you use the main battery wire to the back of the alternator and also ignition wire to the #1 terminal to activate the. In the above pictures, you can see a black wire that is connected to the alternator mounting bracket. My fog lights and my tail light work, but no headlights. Tacomas (2005-2015)' started by Chuy,. # D110SiSE6V35 - 6V 35 Amp 10Si Series Self Exciting (One-Wire) Negative Ground Alternator, 100% New - 1 Price: $119. To check an alternator, pop your vehicle's hood and hook up a voltmeter to the car's battery by connecting the red lead to the positive terminal and the black lead to the negative terminal. "This the 3rd one"… burn up, why? In some cases the conclusion is drawn that "I must be getting poor quality units; they just don't last very long…it works for a while then the light comes on; this is the 3rd one in 6 months!" Or I finally went to the Dealer and got a good one, and it's been working fine". One bar is ground (brown wire) and the other is positive "12V" out (white/red wire). Kristallnacht, or The Night of Broken Glass, was a series of government-sanctioned attacks against the Jewish population of Germany and Austria on November 9-10, 1938. The bigger/thicker wire with the larger loop and sometimes capped with a red hood is the Positive wire. a lose or bad conection can cause heat. They said in there past experience, when the replace the factory hot wire that I could cause issues, so they did 4 gauge ground wire from battery to chassis, battery to alternator, then 8 gauge wire from battery to body, which is the factory ground wires. Internal voltage regulator, no field wire needed. who knew all kinds of service checks. Alternator will overcharge and stuff starts to burn out and melt. WIRING YOUR ALTERNATOR -- Now you are ready to wire your alternator into the charging system. Our free shipping methods (for orders over $35) include USPS, UPS Ground, and UPS Surepost, depending on the weight of your item(s). Connect the output cable (see cable sizing recommendations below) ground, field wire, stator (tach) wire if needed and other necessary wiring. The first time this occurerd, I cut off the bad wire and attached a new connector to the end. Either way it will be a good grounding point. to the battery "BAT" terminal of the alternator and the other end to the "A" terminal of the isolator. 1 WIRING DIAGRAM BY MODEL This document describes car models to which the AFC neo (Product code: 401-A917) is applicable, and ECU terminal arrangement drawings. As everyone else has suggested, I've also kept the original power wire with fusible link in place. Since I cannot seem to find a replacement fusible link, my buddy told me to simply find some braided wire that is the same gauge as the lighter fusible link wire that burned through when protecting the heavier wire in the system. From what I gather the plug is there just to clip in and keep this wire secure, I have no clue what this wire does. Also check the 2-wire plastic plug at the back of the alternator to be certain it is clean. We have all alternators and parts in stock ready to ship immediately. The resistance maybe on the ground side of the circuit even though your noticing issues on the chargeback wire, so test from alternator to battery, battery to chassis, chassis to engine, chassis to alternator case. When working with your Model A used stranded wire for the best results. Hummmmm, that is a very tough question. #B6001-005, 6-Volt, 1-Wire (Self Exciting) Alternator 40 Amp Positive Ground 10SI Delco type. And there is one other wire off the alternator D- going to ground on the fan shroud right next to the VR. my alternator was going dead. The most dangerous bad ground comes from weak or small-wire groundsbetween the engine and the chassis and between the chassis and the body. Just keep going. On the left is the "Gen/Alt" light, and on the right is the "Oil" light. Your regulator is mounted on the right-side firewall and yes, there's several wires going to and from your old generator, but there's really only two on the regulator that are important for correct hookup to the alternator. You will need a crimper better than the typical cheesy consumer-grade item you might already have. The same is true for running the alternator output wire back to a trunk mounted battery. Traditionally, the use of car alternators is discouraged in favor of homemade slow running axial flux generators. Charging System Upgrade Kits Product Improvement – All Kits Now Include Translucent Black Ground Cables! When upgrading your alternator to a unit capable of higher output, it is also necessary to upgrade your vehicle’s wiring. Well that's what my burnt up 1 looked like, then I got a rebuilt and it burnt the stator after a year and I sent it back to Florida for warranty with the a wire hooked to what I think was the 1/4x20 post to the left next to the pig tail wire in your pic but it didn't come back with that wire hooked up just the weather tight pig tail is there. I bought a ground wire kit to replace my current ground wires since one started fraying. Jeep Hid Controller Wiring Harness Diagram. big black /yellow stripe to batt. With 110 VAC house wiring, the white wire is neutral, the green wire is "ground," and the black wire is "hot," carrying the electricity. be careful when working around that terminal on the alternator with metal tools or jewelry or whatever. 2 volts, Repair: ground cable and all connec-tions; connections must be cleaned and repaired. so its time to replace it any ideas on this. According to the diagram I have the Battery wire hooked up correctly. If you try to charge a dead battery with an alternator, you will wear out or burn up the Alternator. We will ship the same business day if you complete your purchase by 2:00PM ET. You should never assume that the mounting bolts provide a clean ground, and therefore, a second ground wire should be used to provide a ground connection for the alternator. Okay, so I looked a lot harder at the wire diagram(the one that TOYOTADAVE posted up). These have diodes stamped into them that engage the two horizontal buss bars in the middle. If you ground this wire and the instrument cluster fuse (5amp)is good will illuminate the light. 1967 Chevy-AC-Assembly Manual - Drawing A. I have the 2 large terminals (on back on the ALT) wired to the positive side of the battery, and the ground is good. If your alternator is not properly grounded it will not charge your battery. This will allow the charging system to use the extra. Just go from either your engines alternator ground point to the negative of your battery or take a grounding point from your engine to the negative of your battery. 1 WIRING DIAGRAM BY MODEL This document describes car models to which the AFC neo (Product code: 401-A917) is applicable, and ECU terminal arrangement drawings. This said, almost without exception, alternator whine is caused by a ground loop (another reason to properly wire your installation). Connect regulator BAT wire to output of alternator 3. Page 1 of 2 - HELP! Battery cables are sparking and melting the contacts - posted in Virtual Mechanic: I installed new battery cables and battery and as soon as I touch one cable after the other is connected it sparks like crazy and starts melting the connections on the battery. I never have replaced alternators on my fleet after I start maintain "CORRECT WAY". Traditionally, the use of car alternators is discouraged in favor of homemade slow running axial flux generators. Others won't charge if the alternator warning light bulb is burned out!. For Briggs & Stratton® engines, you can match up the wires and alternator’s configuration with your Alternator Identification Chart. The batt sense wire that comes off the back of the alternator is supposed to tell the computer how much voltage the battery has. This was a one wire alternator. All others will ship the next business day. Make sure you wire your Marine Alternator correctly. wire to alternator. Just run heavy gauge wires and ground. The wire that comes from the alternator to the fuse box on top of battery is getting so hot that it melted through the fuse box holder, the fuse did not break and the wire starts getting hot as soon as i turn on the engine. Check the alternator pulley for blue discoloration that indicates a slipping belt. Check to see if the system will charge now. You should never assume that the mounting bolts provide a clean ground, and therefore, a second ground wire should be used to provide a ground connection for the alternator. I can really only remember replacing 2 or 3 harnesses in my life time, and both were due to an under hood fire. is that not the main wire that runs from the alternator to the starter then to the battery. The bigger/thicker wire with the larger loop and sometimes capped with a red hood is the Positive wire.