Alternator Exciter Wire Resistor

Wire alternator per (Fig 3) Note: This wiring is most commonly found on Volvo vehicles. The exciter field core and exciter field winding are set- ted up on the bracket on the opposite end of coupling side. Connecting the exciter or sense wire will cause the alternator to drain the battery slowly because it draws a small current through the sense line. The Battery in new. I do not see a resistor in the wiring diagram, so the thought of one never came up. The #1 terminal is then connected to the ignition switch thru a bulb and/or resistor in series as mentioned above. American Autowire says if the vehicle has a voltmeter and no warning light, the brown wire from the alternator "exciter" terminal is connected directly to the accessory bus on the fuse panel. Recently purchased 1966 Corsa. The light does not turn on when the key is on the on position. The exciter coil wire, to the alternator, on the CJ's is made of nichrome and has some sort of inherent resistance. hooked everything up. I also have a steering cooling pump driven by the same alternator that needs the same exciter to energize the pump. Wire will either be Ni80 or SS316L. Alternator and starter component parts supplier for domestic and import with light and heavy duty applications. D/01 - Alternator (Exciter Wire) - D/02 - Headlight, Left, Fuse 1 - D/03 Heated Outside Mirrors (Cabrio A3. alternator complete - 35amp P400: 0 120 400 547: brush holder plate : 1 124 336 017: carbon brush set - S29: 1 127 014 014: diode(-) 1 127 320 035: heat sink assy. Those years had the long nose water pump and passenger side alternator mounting. 78 Heater Fan HVAC AC Blower Motor Resistor Control Fit. The stock regulator gets tossed out. on a GM 3 Wire Alternator, is the idiot light on the exciter wire from the ignition necessary or can it just be wired straight? can't remember if the lamp played some role. I found another link which mirrored your description of hooking the white wires (all of them) to the (+) battery connection on the starter, yellow wire gets switched +12v from the ignition switch, and the B+W wire connects to the alternator light in the dash. JT&T (2770F) 2-Wire GM Alternator Harness Pigtail Adapts Older GM (SI Series) to Newer GM (CS Series) w/o Alternator Warning Light, 1988 - 1995 Price: $6. Amp Gauge Wiring 1) Always disconnect the ground lead from the vehicle battery before wiring any gauge. I can change it easily enough, but it will require a splice and another 2 " of wire. I also checked continuity and have at the exciter and alternator lug: Attachment 8924 Its that heavy gauge small lug that is messing. 5V or higher. The purple wire is the run wire from your key switch. There's only 2 wires in loom, one is 10ga battery & 1 is for idiot light, which isn't being used. To wire it, you have to put power to both terminals. If the Alternator Sensing wire is hooked to the BAT terminal on the alternator or a junction box it is basically hooked up directly to the battery (via the starter). The AC Delco alternator is fitted to many Vauxhall and General Motors cars of both British and continental manufacture. You can use a 1k ohm resistor but if you have a good alternator then the field fix should work fine without replacing the dash light. Go to #1 05-24-2011 10:28 PM by DoodieHead. To further reduce the noise, the claw poles have a chamfer Figure 6. A very first look at a circuit diagram might be complex, however if you can check out a subway map, you can read schematics. Alternator and starter component parts supplier for domestic and import with light and heavy duty applications. Neutral Grounding Resistor (NGR). The drawback of this arrangement is that if the warning light fails or the "exciter" wire is disconnected, no excitation current reaches the alternator field windings and so the alternator, due to low residual magnetism in the rotor will not generate any power. Because a diode only allows current to flow in one direction in a circuit but not the other, it can protect components in a circuit that are sensitive to current that flows through them in the wrong direction. A basic wiring circuit is shown (Figure 3). 11 - Reconnect the ground cable, start the engine and using a. I have a 4 connection Alternator: 1. 5-1760kw (Shanghai Stamford), Find details about China Alternator, Brushless Alternator from Cheap Price Famous Brand Brushless AC Alternator 6. Check the large power cable to the alternator and the fuse, usually, a large 40-60 amp fuse near the battery. 5 with its PP-330 Mechanical Regulator or the 33. The resistance wire feeds the alternator's regulator circuit, which does the math and tells the alternator to charge more or less. The exciter permanent magnet and armature starts the generation process and the output from exciter armature is rectified and sent to the pilot exciter field. Also for: Jca, Jcb. Don't jury rig it, fix the problem. Exciter coils create the auxillary power for the sa200. That small wire is the exciter wire, voltage sensing. If you have a warning light in the dash then that bulb serves as the needed resistance and you should use the non-resistor adapter. The capacitor stores a charge which balances a winding at an output voltage (say 120 volts). The wiring varnish/shellac has sharp edges, so be careful when removing the old windings. boat tach bouncing, We just came back from a three week trip and part way through the port tach started bouncing all over the place. 3 L, 6-speed manual ZF (M6HD-6). How alternator works diy voltage regulator. When reinstalled, the alternator as bench tested seems to be working fine but does not appear to be called upon to put out. Bolts right in, more ampswin win. Connect the “exciter” terminal on the alternator to switched voltage that is ON when the key. (I will have the new alternator tested today just in case it still works) Now to my question: I pulled the resistor wire from the exciter lead to test it with my multimeter. This is a pretty good article on the subject of converting to a CS alternator. 4mm wire 4mm wire 2. 3072 Regulator? –External Voltage Regulator for the Г-424 11-Amp Alternator –Completely Solid-State (Electronic, Transistorized) –Years of Application: 1992-to-1998 –Replaced PP-330 Relay-Type (Mechanical) Regulator. JT&T (2770F) 2-Wire GM Alternator Harness Pigtail Adapts Older GM (SI Series) to Newer GM (CS Series) w/o Alternator Warning Light, 1988 - 1995 Price: $6. Nice explanation @ 2:50 here:. # W1205 - Wiring Harness Adapter, No Resistor, Delco Si Series to CS130D Series or AD Series 4-Pin Plug Price: $44. Pertronix Ignition instructions are extremely specific, and they tell you to bypass Ford’s pink factory resistor wire when installing the Ignitor electronic ignition module. So Im wanting to go with a one wire alternator setup. I've not seen a newer GM alternator that uses the (S)ense wire. 4 volts same readings on the passanger side generator cleaned connectors check some of the grounds , also when I had my volt meter on the front battery it went too 13. Sturm Sturmbann "N" - Nürnberg. in your instance, the same switch also provides power to the exciter, so they connected it at the alternator exciter connection rather than running 2 wires from the switch. I would opt for a 5 watt ( 50 ohm) wire wound resistor resistor for the 12 volt alternator. The Field is also connected to one side of the Voltage Regulator, through it back to Alternator on the other Field wire. This little pigtail is a lifesaver. With the Volve alternators, the brown wire is the exciter wire. 5 volts when I hit the gas, and 15v idling. They are both behind the rear ignition coil. You got lucky, because yours obviously did. The two-wire connector houses the exciter wire, which is responsible for turning off the in-dash light. 5 F350 XLT Lariat 4X4 4R100 4. Just another site. Reply: Lunderic. If I hook the 3G exciter wire to the I terminal, should it be on the solinoid/starter side or coil side of the diode, or should I get a separate diod for the alternator exciter wire? If I wire it with its own diode, it will only get power to it when I am cranking the engine. All battery and alternator terminals cleaned and reassembled, as well as checking resistance. That small wire is the exciter wire, voltage sensing. The other terminal is the exciter. The drawback of this arrangement is that if the warning light fails or the "exciter" wire is disconnected, no excitation current reaches the alternator field windings and so the alternator, due to low residual magnetism in the rotor will not generate any power. They have a main rotating field (main rotor), exciter, and permanent magnet generator that are basically identical to their low-voltage siblings. The markings on my diagram are not clear, and don't correspond with those on the alternator. 3771 35-Amp Alternator – Completely Solid-State – Years of Application: 1998. The largest is always better (although clunky in appearance) for minimal resistance for alternators putting out more than 100 amps. This shows you what size resistor you need 2 go to the Exciter wire for your LS truck alternator 470 ohm 1/2 watt resistor in my 1981 Toyota starlet LS3 twin. If memory serves me correctly I believe the larger diameter wire form the side plug on the delco alt gets hooked to the orange wire that the stock regulator was plugged in to, the small wire gets looped to the battery lug on the alternator itsself, then all you need to do is hook. 9 191-2143-03 1 Guard, Alternator Belt - Spec A 10 191–0716 1 Spacer, Alternator Mounting 23 720-1806 (1/2 OD x 2-3/4” Long) Spec A QTY USED 1 1 1 1 1 1 1 1 1 2 2 1 2 PART DESCRIPTION Spacer, Alternator Mounting (11/160 Dxl-13/16 Long) Spec A Washer, Flat (3/8) Spec A Bracket, Alternator Mounting – Spec A Spacer – Spec A * Regulator. , in parallel, which makes the combined resistance of the light and the resistance very small), the exciter wire carried enough current to get the alternator to start charging. Make sure your battery is charged as trying to charge a dead battery can overload and destroy an alternator. Nous avons 171 films HD complets avec BBW HD Porn 1080p dans notre base de données. The alternator is a CS130 with the 4 prong connector for the exciter wire & voltage sensing wire. Wire size is based on 4’ battery cables. Exciter wire as stated needs to be a 12v, key on signal. An alternator is an auto part that transmits power from the fuel system to the battery for operating vehicle accessories, such as the radio, headlights and air conditioning fans. If you have questions, call our marine engine technicians. I don't know what the resistor drops the voltage to, and I wonder if my alternator will care. But as a resistor for the alternator's S wire? Never seen that. If your alternator stops charging, starting with a fully charged battery, you will only get 3 to 10 starts before the battery will no longer crank. delco 3 wire alternator wiring diagram – A Novice s Overview to Circuit Diagrams. I needed to protect the system from excessive charging by my 140A alternator, so I followed the Painless instructions and have installed giant wires to shunt excessive power to the battery. _____ Delco 10SI New Installation - Part # W290. The resistor is suggested because in the event of a shorted battery cell (for example), the current would rise to infinity and burn out the alternator trio or D+ wiring without some sort of protection. The drawback of this arrangement is that if the warning lamp burns out or the "exciter" wire is disconnected, no current reaches the field windings and the alternator will not generate power. (Bottom red circle in the pic above. I took it to get tested works fine. Looking at the diagram, You will want to wire the exciter wire from the key switch, through the firewall, to the L terminal, and insert a resistor in series as shown. Replaced a 43 amp. hooked everything up. in your instance, the same switch also provides power to the exciter, so they connected it at the alternator exciter connection rather than running 2 wires from the switch. There might be a break in the wire. ARMY TM 9-6115-644-24 AIR FORCE TO 35C2-3-446-12 MARINE CORPS TM 09249A/09246A-24/2 GENERATOR STATOR EXCITER FIGURE 4-10. RNG with more options. The kits that I offer use a new 63 amp Delco 10SI cloned alternator. Im installing a Motorola alternator on the John Deere LA I know how to wire it the question I have is this alternator / voltage regulator use a 12Volt feed from the ignition switch to excite it well the LA has a. It'll have 14. Look (or feel) for shrink wrap -- the same color (yellow), as the wire -- hard to see. The exciter field core and exciter field winding are set- ted up on the bracket on the opposite end of coupling side. GM has many different alternators and each has its own alternator wiring diagram and alternator symptoms. GM alternators require an exciter wire with a 12V switched source, otherwise they won't charge. Page 1 of 2. Since in mobile service such alternator-rectifier units have a low voltage output and operate in a self-excited mode, with the excitation voltage being the same as the output voltage of the alternator-rectifier, it is necessary to choose between the respective disadvantages of utilizing values of exciter current that are relatively large for. The other side of this problem is that you put full 12 volts on an electronic circuit designed to be limited by a resistor. : ABB low voltage (LV) modular marine generators are tailor-made for diesel gen-sets or operation as shaft generators on board ships or offshore platforms. I'm believing its the clocks at fault after stripping down and checking I'm getting the same voltages (as above) directly out of the clocks and the battery light is dim when compared to the others. A very first look at a circuit diagram might be complex, however if you can check out a subway map, you can read schematics. Gm Alternator Wiring Plug - The Wisdom of the Chinese Kitchen is a daughter's tribute--a collection of personal memories of the philosophy and superstitions behind culinary traditions that have been passed down through her Cantonese family, in which each ingredient has its own singular. The "L" wire that energizes the alternator needs some resistance (35 ohms or more) in it otherwise it will cause the alternator to fail. and connect the red wire to the output side of the alternator 10/32 stud, take the long wire and connect to the + side of the coil. generating, a diode feeds the field current from the alternator main output, thus equalizing the voltage across the warning light which goes out. Only hiccup was that the white/blk wire that was described was tan or yellow in my car. Parts are just part of what we do. The exciter sends a radio signal that’s received by the transponder. Run the red alternator power (58) wire to terminal 2 on your GM alternator. Normally, the current for the field windings is supplied by the battery while the engine is being started, but once the battery is started, the armature windings (on the stator) generate enough current & voltage to power the field coils, so the alternator becomes self-exciting and no external power source is needed to power the field winding. Here’s a mistake we’ve made ourselves. Also for: Jca, Jcb. generating, a diode feeds the field current from the alternator main output, thus equalizing the voltage across the warning light which goes out. Click the Additional Information tab for more details. A Jumper is installed between ENABLE and SENSE terminals on the PP regulator. A wire size too small can allow the wire to overheat, melt the insulation and cause a fire or worse. Some coils have an internal resistor, while others rely on a resistor wire or an external resistor to limit. If light does not come on, check wiring between generator and. 2) If resistance is too low, rotor has short circuit and must. Neutral Grounding Resistor (NGR). The markings on my diagram are not clear, and don't correspond with those on the alternator. 0 volts because of the voltage drop that occurs in the wiring from the alternator to the main bus bar and on to the amps. Main Alternator. The alternator only needs a trickle of current to bootstrap, so the resistance in the exciter wire allows that - but it limits the current enough to prevent backfeed through the exciter wire. ) The exciter armature is wound in a 3-phase, 4-wire wye (star) configuration and the main armature is a 3-phase, 3-wire design. Wiring for alternators ac alternator alternating cur types review engineers edge basic circuit of a three phase star connected exciter feeding into scientific diagram 7 wires 3 5kw generator avr china voltage regulator se350 save national prettyrun it few words about small sel generators diagrams aftermarket fuse box bege schematic the excitation turbo 1996 jeep cherokee headlight switch. New alternator, regulator, starter solenoid. So it means the D+ going to the alt through pin 22 at C2 connector (according to the wiring diagram) is just coming from the alt warning light?. RNG with more options. 02 Use this style adapter if vehicle is w/o alternator warning light or if vehicle has voltage gauge & no warning light. Generator set. The most common way this happens is trying to hold the alternator stationary by inserting a screwdriver or other tool through the vanes of the case while removing the pulley nut. A sales representative will contact you to discuss your intended project and make sure that the Power Pallet is right. As the alternator needs to 'see' a current on the exciter terminal I have no option but to replace the bulb with a low value resistor. Macintosh Design. an engine, wind turbine, water wheel etc to rotate them. Look (or feel) for shrink wrap -- the same color (yellow), as the wire -- hard to see. Hope to have given you an idea, thanks. Go to Page. You do need a 12v source for the exciter wire. Since in mobile service such alternator-rectifier units have a low voltage output and operate in a self-excited mode, with the excitation voltage being the same as the output voltage of the alternator-rectifier, it is necessary to choose between the respective disadvantages of utilizing values of exciter current that are relatively large for. About a system with warning light they say: "The electrical current passing through the filament of the warning light is what energizes (or excites) a. Connecting the exciter or sense wire will cause the alternator to drain the battery slowly because it draws a small current through the sense line. The #1 terminal is connected like the 2-wire setup. Collection of three wire alternator wiring diagram. The resistance on older cars would come from the ALT or GEN light on the dashboard. # W1205 - Wiring Harness Adapter, No Resistor, Delco Si Series to CS130D Series or AD Series 4-Pin Plug Price: $44. I needed to protect the system from excessive charging by my 140A alternator, so I followed the Painless instructions and have installed giant wires to shunt excessive power to the battery. When I did my conversion I added an idiot light. Alternator - Free download as Word Doc (. After much messing around I pinned it down to a small part/inline link that was. I got in a hurry and tapped the wrong side of the ignition resistor for the excite feed to the alternator. If you’re using a one wire alternator this wire will run to the charging post on the alternator. Sturm Sturmbann "N" - Nürnberg. The drawback of this arrangement is that if the warning lamp burns out or the "exciter" wire is disconnected, no current reaches the field windings and the alternator will not generate power. The most common components are capacitor, resistor, and battery. Do not wire this into the coil power wire that you use to switch the engine on & off (a seemingly elegant solution), since once the engine is running the alternator will feed power back through this wire, which will then power. Just found THIS THREAD with details on the setup. From reading the internet it makes sense that the LED has a voltage drop of 3V and is supplied by 20 mA (this should be the most common setup). The Main Exciter consists of 2 sections the first being (closest to the Pilot Exciter) a rotating diode and fuse rotor. The alternator is a CS130 with the 4 prong connector for the exciter wire & voltage sensing wire. The exciter wire is blacked out as it leaves the alternator plug, so that little bit of wire going into your flex loom isn't as noticeable. Some warning indicator circuits are equipped with a resistor in parallel with the lamp that permit excitation current to flow if the warning lamp burns out. An overload generator will smoke if the current-cutout is disabled or misadjusted. I believe the 12V from the battery back-fed thru the exciter wire and illuminated the light on the dash. 78 Heater Fan HVAC AC Blower Motor Resistor Control Fit. It's been my understanding that the extra resistance wire was a back up exciter for the alternator, in the event the bulb burned out or for voltmeter vehicles. The following diagram shows the wiring for a typical 3-wire alternator connected to our Infinitybox system. Ford put a bypass resistor to excite the alternator should the bulb fail. According to the schematic I have here for an '84, there is a resistance wire feeding the alternator field, as well as a GEN lamp. Excitation System in Alternators : The system that is employed for providing the mandatory field current to the rotor winding of the synchronous machine, such kind of system is termed associate excitation system. (terminal 1, L, and/or I). D/01 - Alternator (Exciter Wire) - D/02 - Headlight, Left, Fuse 1 - D/03 Heated Outside Mirrors (Cabrio A3. The exciter sends a radio signal that’s received by the transponder. alternator synonyms, alternator pronunciation, alternator translation, English dictionary definition of alternator. If the bulb burns out or is not in the socket the exciter wire will go through the resistor and still allow the alternator to charge. 9 191-2143-03 1 Guard, Alternator Belt - Spec A 10 191–0716 1 Spacer, Alternator Mounting 23 720-1806 (1/2 OD x 2-3/4” Long) Spec A QTY USED 1 1 1 1 1 1 1 1 1 2 2 1 2 PART DESCRIPTION Spacer, Alternator Mounting (11/160 Dxl-13/16 Long) Spec A Washer, Flat (3/8) Spec A Bracket, Alternator Mounting – Spec A Spacer – Spec A * Regulator. Alternator Exciter Wire-G05: Seat Belt and Brake Warning Light power (Cabriolet and Scirocco) Main Fusebox Start/Run Power, Fuse 18: Black: G06-Gauge Cluster (Low Oil Pressure Light Controller)-G07-Headlight Switch Headlights Power (Europe only)-G08-Dash Lights-G09: Headlight Washer Relay (Europe only) License Plate Lights, Fuse 20: Gray/Green: G10. (Bottom red circle in the pic above. Some warning indicator circuits are equipped with a resistor in parallel with the lamp that permit excitation current to flow if the warning lamp burns out. The other wires are getting the proper voltage. I found another link which mirrored your description of hooking the white wires (all of them) to the (+) battery connection on the starter, yellow wire gets switched +12v from the ignition switch, and the B+W wire connects to the alternator light in the dash. I would opt for a 5 watt ( 50 ohm) wire wound resistor resistor for the 12 volt alternator. The alternator is relatively heavy and can easily damage the fins. If no alternator warning lamp is desired, a 50 Ohm resistor is used. You do need a 12v source for the exciter wire. 2 volts while running , but when I turn the lights on it drops down to 11. Do not use wire wound resistors, even non-inductive wire wound. UNLESS if it's a CS-130 style alternator than it's expecting to have resistance on that exciter wire. A true "one wire" alternator won't have the plug at all, just the post for the cable to the fuse block or battery or starter. The exciter wire is blacked out as it leaves the alternator plug, so that little bit of wire going into your flex loom isn't as noticeable. 10 DW CC LB Centurion conversion, 183K miles Garret Turbo, Radio SD &Tape, SP Performance 40-60-80 chip, 100 Gal. Regulator was solid state so no Gen light. Connect the “exciter” terminal on the alternator to switched voltage that is ON when the key. 2) Turn ignition on and ensure generator indicator light comes on. If your unit requires a separate ground run a short wire from the alternator to a convenient point on the engine block or the chassis. The battery light on the dash is the exciter for the alternator. 71 chevelle ignition switch wiring, REPLACE THE IGNITION LOCK CYLINDER Easy 7 & 8 LOST IGNITION KEY - INSTALL NEW LOCK CYLINDER Easy 8 REPLACE THE KEY WARNING BUZZER SWITCH Easy 9 How the Papers are Setup This is the first of three papers that address various repairs that can be made on the Corvette C3 tilt and telescoping (T&T) steering column. Power in kVA: 500, 2,430 kVA Voltage: 400, 450, 440, 415, 480 V. Click the Additional Information tab for more details. flows through the alternator excitation resistor (N) to. 10SI Alternator Wiring. (Cold resistance is much lower. If you put a small screwdriver in the hole and touch the terminal inside it will full field the alternator and it should put out full. Once the 345 is running the alt is charging and the light will turn OFF. Unlike other charging systems which have three wires connected to the alternator, the CS-121 and CS-130 may be used with only two wires connected to the alternator. Run the white alternator exciter (44) wire to the 1 terminal on your GM alternator. Higginbotham. The I terminal of the switch also goes to the coil, so it has to go off when the key is turned off. Note that the exciter wire has to be on a switched circuit, exciting the alternator only when your engine, or key switch is on. Looking at the diagram, You will want to wire the exciter wire from the key switch, through the firewall, to the L terminal, and insert a resistor in series as shown. The "L" wire that energizes the alternator needs some resistance (35 ohms or more) in it otherwise it will cause the alternator to fail. These alternators are self-energizing. Here is the harness for the light switch. if that has bat voltage, then you have a simple fix. Alternator Rectifier Bridge. It is very important to use the correct wire size to connect the alternator to the battery. a) The main rotor needs replacing b) The exciter rotor needs replacing c) The alternator will require cleaning & overhaul d) That the alternator needs replacing with a new one Q16 Most small and mid-range alternators have 4 poles, why do you think larger machines generally have more poles. 1972 Ford F-100 thru F-350 Master Wiring Diagram Image Size: 11,438p x 1698p ~ File Size: 1. I've found the various useful threads in the archives about diagnosis and solution and just wanted to check that the 40 Ohm version of one of these is what I need (I've linked to the 50 Ohm version because there's not a nice picture of the 40. Normally on the Ford circuits I've seen the resistor is used as a bypass in case the bulb burns out. Some will need the resistor and some wont, Just a luck of the draw type of thing. delco 10si & 12si series internally reg resistor alternator patch harness-bwagen001. I am finishing up installing a LS2/4l70e out of 2008 TBSS with a new 2005 Corvette accessory drive into a 69 Camaro. With the car running, ask the mechnaic "what is the voltage across the battery?". The Delco drawing is based on the use of older alternators and is a "universal" solution for older alternators with first and second generation control systems (mechanical then electronic) where the excitation current for the alternator comes through the lamp. The wiring diagrams in the books typically show both possibilities in one schematic. The current transformer input to the AVR ensures limiting of the alternator current during a fault. I have wire red wire 715 to alternator output poist and have re-used the original wires to the external regulator. This harness can be used as a new installation wiring kit for early. Bob states it sounds like you have a problem in your exciter circuit. Supports a 1-wire alternator and also includes an exciter wire for use with other regulator-style alternators. 10 - Make sure battery is fully charged before starting engine. 5 with its PP-330 Mechanical Regulator or the 33. All battery and alternator terminals cleaned and reassembled, as well as checking resistance. You're on Page 1 of 2. The exciter wire is blacked out as it leaves the alternator plug, so that little bit of wire going into your flex loom isn't as noticeable. 4 volts same readings on the passanger side generator cleaned connectors check some of the grounds , also when I had my volt meter on the front battery it went too 13. A true "one wire" alternator won't have the plug at all, just the post for the cable to the fuse block or battery or starter. The resistor should be equivalent to a 3-4 watt bulb. Connect the “exciter” terminal on the alternator to switched voltage that is ON when the key. The exciter wire is not what the regulator regulates toit regulates to the red wire on the two pin connector. The bulb limits current enough that the alternator cannot back-feed through the bulb to the ignition swotch. The Main Exciter consists of 2 sections the first being (closest to the Pilot Exciter) a rotating diode and fuse rotor. You need a 50-80ohm resistor wired in-line with the exciter wire. also if you just plain dont hook this wire up, your alt will not charge. It all rides on circuit that's being assembled. New resistor R100 loads the cathode system of the amplifier, and prevents sharp cutoff tubes from oscillating. I ran for a couple of hours with a overcharging alternator and roasted my battery. I believe the 12V from the battery back-fed thru the exciter wire and illuminated the light on the dash. 1) Connect a voltmeter between generator B+ terminal and ground. Regulator Sensing Voltage at Alternator End The topic of wiring a high performance alternator regulator, and doing it correctly, comes up a lot. A couple of weeks ago, I got the "Battery/Alternator Warning -- Visit Workshop" indication. This wiring configuration will excite the alternator to start charging when the engine is running at low RPM’s. There might be a break in the wire. My car alternator runs at 16 to 16. The bottom wire is AWG 12, the middle is AWG 10, and the largest is AWG 6. This works and allows the alternator to charge. The kits that I offer use a new 63 amp Delco 10SI cloned alternator. This prevents false high SWR or exciter power readings, since cathode harmonics show as reflected power The tuned input circuit provides a stable low impedance to the cathode of the. I pulled the battery and. There seemed no rhythm or reason as to why. the exciter. You get 1 wire alternators where there is no indicator light and the exciter link is internal. The DC excitation system has two exciters – the main exciter and a pilot exciter. 11 - Reconnect the ground cable, start the engine and using a VOM meter, verify that the. This alternator plug-pigtail incorporates a Weather Pack style seal and an in-line resistor that allows, but does not require, a charge light in this exciter circuit. If you install the resistor then this is OK & simple. With “three wire” operation an external exciter wire switches on the alternator. One wire will connect to the output. A few days ago I noticed my volt gauge on the dash reading VERY low. Alternator Exciter Wiring I have the Ron Francis 5. Wiring for alternators ac alternator alternating cur types review engineers edge basic circuit of a three phase star connected exciter feeding into scientific diagram 7 wires 3 5kw generator avr china voltage regulator se350 save national prettyrun it few words about small sel generators diagrams aftermarket fuse box bege schematic the excitation turbo 1996 jeep cherokee headlight switch. 75mm in order to double up on the windings, fitting in 30 turns in each stator slot. A basic wiring circuit is shown (Figure 3). 75 ohms for 55-amp alternator and 2. Found a 2007 post about swapping an alternator from a 1978 Camaro. I believe the alternator is a 3 wire (internal regulator) that was converted to a 1 wire setup. The other terminal is the exciter. I also used a American Autowire kit for my truck and thought it was exceptional. 5k ci 3 2 0. It gets a low voltage input from the ignition through the alarm pannel. After it comes out of the regulator, the other capacitor, the 0. generating, a diode feeds the field current from the alternator main output, thus equalizing the voltage across the warning light which goes out. So, additional bearing is not necessary. Collection of three wire alternator wiring diagram. It will speed up battery draining, but it might be livable. Run the red alternator power (58) wire to terminal 2 on your GM alternator. 10 - Make sure battery is fully charged before starting engine. Delco EST (Electronic Spark Timing)Ignition system is a High Energy Ignition (HEI) System with electric advance timing based on engine RPM. 5V or higher. I'm trying to think way back to when I ripped my car apart and I do not remember removing a resistor at all. One of the most confusing and often misunderstood areas, that can bite into your charge performance, is incorrect voltage sense wiring. 2 Wire Alternator Wiring Diagram – 2 wire alternator wiring diagram, ac delco 2 wire alternator wiring diagram, bosch 2 wire alternator wiring diagram, Every electric arrangement is made up of various distinct components. Connect the “exciter” terminal on the alternator to switched voltage that is ON when the key. By removing connection to Regulator and jumpering the Field wire in a closed loop, from alternator-to alternator, no stops on the way, the system goes to 'Full Field'. How you connect it depends on high one you buy. Alternator not charging. As shown in the techref doc I hooked the "L" prong to the exciter wire which has 12v when the key is in run, and the "S" terminal with the thicker wire straight to the alternator output lug. 5mm wire Agriline Diesel Massey Ferguson 35 Wiring Diagram Diesel 3 Cylinder with alternator 674 96AH battery Insulate wires with a good quality insulation tape and place in protective flexible auto wire sleeve. The exciter field core and exciter field winding are set- ted up on the bracket on the opposite end of coupling side. Collection of three wire alternator wiring diagram. The only other time current will flow in the exciter wire is of course during an alternator failure. It could be my computer or pulleys in the wrong too so I can't risk buying a new one and still having the problem. The resistor is there to bypass the GEN lamp if it burns out. 642" pully size ; The 10SI GM style alternators have a custom voltage regulator that lets the alternator be used as a 1-wire alternator or can be factory wired using the OEM plug. I am guessing that I need to trace down the parts of the wiring that excite the alternator. : ABB low voltage (LV) modular marine generators are tailor-made for diesel gen-sets or operation as shaft generators on board ships or offshore platforms. 2 volts regardless of the engine state, cold or hot. A protection diode is used in a circuit so that current will not flow in the reverse direction in the circuit. With the car running, ask the mechnaic "what is the voltage across the battery?". Main Alternator. On older cars one wire gets 12v from the battery, the other goes to the charge light on the dash. Resistor Mating connector is plugged into accessory connector Underdash Courtesy Lamp Wiring 156D 156C 156D 53G 53F 53G 156C 53F GM “SI” Alternator Exciter Wiring 2G NOTE: Your new underdash courtesy lamp extensions use # 631 bulbs (not included with this kit). The sense wire, what you are calling the exciter wire should not be going through the alternator light. It all rides on circuit that’s being assembled. Posted By: tom_kat on 11/01/05 10:21am is there a plug in on the back of the alternator, that usually comes from the key switch when you turn the key on , it gives voltage to the alternator to activate it,or do you have the one wire battery cable hook up,check all the grounds and positive cables from the engine to frame and battery's,make sure there clean and tight,they get corroded and cause. An alternator rated for 60A @ 12V will not put out more than ~65A @ 0V. (+) 1 125 715 051: diode(+) 1 127 320 025: exciter diode plate: 1 121 099 007: exciter diode : 0 270 000 009: stator winding : 1 125 045 000: rotor : 1 124 034 010: belt pulley: fan. If your unit requires a separate ground run a short wire from the alternator to a convenient point on the engine block or the chassis. It provides full exciter power, regardless of the generator voltage. 1 xop1 0 2 3 opamp1 * * * comparator with hysteresis r1 3 4 20k r2 4 1 10k xop2 4 5 6 opamp1 rlim 6 1 1000 d1 1 7 dz1 d2 0 7 dz1 * * vref vref 5 0 0v * * * opamp macro model, single-pole with 15v output clamp * connections: non-inverting input. Exciter current will now flow through bulb (on) and resistor. Our alternator kit also contains the pigtail exciter to ensure that the alternator will charge even if your harness doesn't have the plug, or if you're doing a carburetor. With “three wire” operation an external exciter wire switches on the alternator. This is a discussion on LS1 alternator problems within the General Help forums, part of the LSx Technical Help Section category; Red wire on voltage regulator should go on computer c2 ,terminal 15. A generator is an energy CONVERTER, it converts mechanical energy to electrical energy. 10 DW CC LB Centurion conversion, 183K miles Garret Turbo, Radio SD &Tape, SP Performance 40-60-80 chip, 100 Gal. You get 1 wire alternators where there is no indicator light and the exciter link is internal. American Autowire says if the vehicle has a voltmeter and no warning light, the brown wire from the alternator "exciter" terminal is connected directly to the accessory bus on the fuse panel. To further reduce the noise, the claw poles have a chamfer Figure 6. For a 3-wire setup, run a wire from #2 to some remote circuit location to sense voltage at that point. Since you say the warning lamp works it sounds like fuse 29 is ok. the exciter. If installing a 1-wire alternator, see wiring instructions at upper right. When the motor is running the alternator output is only 11. Or, contact the alternator maker and ask them--they're usually pretty good about it--how that exciter wire was supposed to be connected. Hey guys, looking for abit of help on how to get a LED alternator light to work, and be enough of a draw to keep the alternator charging. The new belt is extremely tight; two brand new 105 Ah Walmart EverStart batteries. This contains the terminal connector AND an extra resistance wire pigtail to connect to the ignition system (don't use a ballast resistor if you use a resistance wire). I routed mine right to the charge post. I checked the voltage at the exciter wire and was receiving 12v when the engine was running. Page 1 of 2. The resistor should be equivalent to a 3-4 watt bulb. Loop the red wire off the factory harness plug on the alternator to the big post on the rear of the alternator. Looking at the schematic for a tuff stuff alternator and it is showing that it needs a resistor in the small brown "Exciter" wire for the alternator. Neutral Grounding Resistor (NGR). As you can see in their diagram, if the bulb burns out the way they have it wired the power will stop and your alternator will no longer charge. This pigtail solves that issue and even allows for the use of a voltmeter if you wish. I have installed GM 3 wire alternator with dash lamp wired to exciter terminal (#1) on the alternator. The exciter wire is blacked out as it leaves the alternator plug, so that little bit of wire going into your flex loom isn't as noticeable. I have the stock 85 alternator. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. I'm believing its the clocks at fault after stripping down and checking I'm getting the same voltages (as above) directly out of the clocks and the battery light is dim when compared to the others. alternatorparts. There's only 2 wires in loom, one is 10ga battery & 1 is for idiot light, which isn't being used. - If the voltage is low, the alternator is probably bad. 1uF ceramic, cleans up any high-frequency or ac noise that may come out, again to produce a clean DC signal. 3072 Electronic Regulator. Look (or feel) for shrink wrap -- the same color (yellow), as the wire -- hard to see. The exciter field core and exciter field winding are set- ted up on the bracket on the opposite end of coupling side. wiring loom, 21 - the wire "battery – ground, 22 - breaker, 23 - valve, 24 - high voltage wire and 25 - button signal 26 - wire signal 27 - advance ignition; 28 - cord switch driving and parking light, 29 - switch to driving and parking light, 30 - control. With “three wire” operation an external exciter wire switches on the alternator. Order Alternator Resistor for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. When I did my conversion I added an idiot light. Macintosh Design. The exciter output is adjusted by an automatic voltage regulator (AVR) for controlling the output terminal voltage of the alternator. - Exciter wire - I soldered in a 470 ohm resistor inline on the red exciter wire in my harness going to the alt plug. flows through the alternator excitation resistor (N) to. The resistance wire feeds the alternator's regulator circuit, which does the math and tells the alternator to charge more or less. The "L" wire that energizes the alternator needs some resistance (35 ohms or more) in it otherwise it will cause the alternator to fail. Seemed like bad diode in Alternator. A popular & bad mod is to hook it up to the back of the alternator. If your alternator stops charging, starting with a fully charged battery, you will only get 3 to 10 starts before the battery will no longer crank. It is more practical by far to build an alternator with a stationary wire coil and a rotating magnet than to build one with a stationary magnet and a rotating wire coil, because a machine with a rotating coil would require some form of brushes and slip rings to conduct power from the rotating shaft to the load. 9 - If installing an alternator with OEM wiring connections, reconnect alternator wires and battery ground cable. Supports a 1-wire alternator and also includes an exciter wire for use with other regulator-style alternators. Looks like I need 15 Ohms on that wire. Stator winding resistance, Rs — Resistance scalar. SS-VT black tunic to SS-Oberscharführer Hasselwander, 1. I believe the alternator is a 3 wire (internal regulator) that was converted to a 1 wire setup. I looked in my gm factory manual and it does show a resistance wire on the schematic. My alternator only has two wires. The Battery in new. The fat B+ wire that goes to the battery or fuse box attaches to the threaded post in exactly the same way it did on the original alternator. A diode is sometimes needed in the exciter wire, to keep the alternator from sending power to the ignition system, and having the engine run after you turn off the key. You got lucky, because yours obviously did. John's has a self exciting regulator also known as a marine regulator,I have 4 or 5 of that. 5 F350 XLT Lariat 4X4 4R100 4. These alternators are self-energizing. Just another site. 7 cummins battery voltage, Feb 03, 2007 · There are two main reasons. One wire will connect to the output. 5 F350 XLT Lariat 4X4 4R100 4. Now, I am wondering if this light didn't provide enough resistance on the exciter wire all along, and that's been my problem since day one. The drawback of this arrangement is that if the warning light fails or the "exciter" wire is disconnected, no excitation. Order Alternator Resistor for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. This contains the terminal connector AND an extra resistance wire pigtail to connect to the ignition system (don't use a ballast resistor if you use a resistance wire). 2mm dia and I reduced the wire diameter to 0. The other terminal is the exciter. I now want to hook up a 3v3 MCU to monitor the state of this circuit and to replace the visual element of. I noticed that if I unplug the exciter wire, I get 14. Re-wiring an old tractor. 4 volts same readings on the passanger side generator cleaned connectors check some of the grounds , also when I had my volt meter on the front battery it went too 13. Ground to block 2. You don’t get something for nothing. The kit originally comes with the older style plug for the alternator. Wire It ties into the ignition wire,it's a resistor wire,when you start the engine it sends a small amount of current to start the alternator charging,when you turn the engine off,not enough current goes back thru it to back feed the system,and make the engine keep running even with the ignition off. The output wire to the battery positive, and an "L" terminal wire connected to the charge indicator bulb, or to the resistor, or to both. also some time it would suddenly stop jumping around and read fine. A rectifier bridge can contain 3, 6, or sometimes 8 diodes depending on its design. at about -3dB, the overall characteristic extends to 80. Putting the bulb in series with the exciter wire eliminates the need for a diode. Title: Charging_Alternator Author: FWO Created Date: 9/14/2007 2:41:20 PM. ©2021 Kubota Parts Depot a division of MB Tractor & Equipment Site Map | Conditions of Use, Terms and Conditions, Privacy Policy. CS144 alternator is with a 6 groove serpentine pulley of the proper diameter. A positive biased diode allows only positive voltage to pass through and a negative bias diode allows only negative. Pertronix Ignition instructions are extremely specific, and they tell you to bypass Ford’s pink factory resistor wire when installing the Ignitor electronic ignition module. 23/10/2000 · This Sichuan-style dish is one of the few non-Cantonese recipes in Grace Young's book, The. Most are near the main power from the battery. Just keep the resistor/bulb connected for about 5 seconds; that should do the job. 2) If resistance is too low, rotor has short circuit and must. With a 1N4004 across it to protect it. Page 1 of 2. A 10 or 12 SI have 3 connections, the large stud is for the battery feed, The number 1 small terminal is for the light wire the number 2 terminal is for the Sense wire. Question: Figure 4 (c) Activity 7-1: The Resistor In An AC Circuit Connect The Circuit In Figure 4(a). The drawback of this arrangement is that if the warning lamp burns out or the "exciter" wire is disconnected, no current reaches the field windings and the alternator will not generate power. (G) It won't take long before you have one of those days when you say "Wow, I should have bought one of. Testing the AC power supply. Don't jury rig it, fix the problem. Try buying a NEW alternator and if you want it with a little more output, grab one for a 97 power stroke. How to Connect a Protection Diode in a Circuit. Always use caution when modifying a system. The exciter permanent magnet and armature starts the generation process and the output from exciter armature is rectified and sent to the pilot exciter field. Look (or feel) for shrink wrap -- the same color (yellow), as the wire -- hard to see. They differ in the construction relative to the alternator’s armature (main stator). Alternator Rectifier Bridge. 3771 35-Amp Alternator – Completely Solid-State – Years of Application: 1998. These won't charge at all until you give it a constant +12V. The Ignitor must have 12 to 14 volts to perform as designed. It is more practical by far to build an alternator with a stationary wire coil and a rotating magnet than to build one with a stationary magnet and a rotating wire coil, because a machine with a rotating coil would require some form of brushes and slip rings to conduct power from the rotating shaft to the load. Find ACDelco 19152464 ACDelco High-Amp Alternators and get Free Shipping on Orders Over $99 at Summit Racing! ACDelco high-amp alternators will provide your charging system with a significant boost. You must have a bad regulator, it's mounted on the pass side fender or body wall. It's been my understanding that the extra resistance wire was a back up exciter for the alternator, in the event the bulb burned out or for voltmeter vehicles. The CS series on the other hand does need resistance" He listed a coulpe other models that needed resistance (I can't remember what they were), but he assured me the SI series was fine without. I believe the alternator is a 3 wire (internal regulator) that was converted to a 1 wire setup. Posted By: tom_kat on 11/01/05 10:21am is there a plug in on the back of the alternator, that usually comes from the key switch when you turn the key on , it gives voltage to the alternator to activate it,or do you have the one wire battery cable hook up,check all the grounds and positive cables from the engine to frame and battery's,make sure there clean and tight,they get corroded and cause. 2nd- reason in order to build up cylinder pressure ( heat is used to ignite the fuel); and build up fuel pressure; the engine needs to be able to turn a min. I've fallen foul of the problem of the alternator not being activated having replaced the ignition/alternator light with an LED version. Also for: Jca, Jcb. The new belt is extremely tight; two brand new 105 Ah Walmart EverStart batteries. flows through the alternator excitation resistor (N) to. My understanding is I wire the exciter wire thru the idiot light to the fuse box and idea is if the alt in NOT charging and the ign switch in ON, the light will turn ON. My problem is the resistor gets very hot to touch (Whether the engine's running or not). One to the battery and a second one that runs through a resistor to a switched +12v (accessory). It is just that I have no idea which terminals the wire harness hooks up to. This puts the light bulb and resistance wire in parallel, causing a drop in resistance, not added resistance. The most common components are capacitor, resistor, and battery. The Ignitor must have 12 to 14 volts to perform as designed. I presume the light did not go on once you hooked the exciter wire to the proper lug? I'd say start it up. Some warning indicator circuits are equipped with a resistor in parallel with the lamp that permit excitation current to flow if the warning lamp burns out. I have no wiring to start with (buggy build) so doing everything from scratch. If the alternator has an external regulator, the warning light wire attaches to it in the same way as a dynamo. 1st--there are fast acting double grid heaters in the intake that can pull up to 120 amps while starting. A Volt gauge. Here is the harness for the light switch. Wire will either be Ni80 or SS316L. if that has bat voltage, then you have a simple fix. So I know the yellow is to the solenoid, and the large lug is to the hot lug on the starter. The wiring varnish/shellac has sharp edges, so be careful when removing the old windings. Aftermarket gauge wiring terminals and instructions are included. How to Connect a Protection Diode in a Circuit. Alternator - Free download as Word Doc (. This is a discussion on LS1 alternator problems within the General Help forums, part of the LSx Technical Help Section category; Red wire on voltage regulator should go on computer c2 ,terminal 15. You must have a bad regulator, it's mounted on the pass side fender or body wall. Installing is reverse of removal steps. It all rides on circuit that’s being assembled. I just ran the one RED lead from the battery, and then the connected the original ALT wire from the Monte to the Brown wire on the CS plug, also the little red wire goes to the post on the back of the ALT, with the lead from the battery mentioned earlier. Since in mobile service such alternator-rectifier units have a low voltage output and operate in a self-excited mode, with the excitation voltage being the same as the output voltage of the alternator-rectifier, it is necessary to choose between the respective disadvantages of utilizing values of exciter current that are relatively large for. If you go with an alternator, you no longer need the voltage regulator. Excitation System in Alternators : The system that is employed for providing the mandatory field current to the rotor winding of the synchronous machine, such kind of system is termed associate excitation system. According to earlier, the lines at a Alternator Exciter Wiring Diagram signifies wires. com Replaces these OEM Alternators GM 10DN Externally Regulated GM 10SI Internally Optional Charge Indicator Light Function: Your Powermaster Alternator is designed to work as a 1 wire without any connections to the plug in. A wiring diagram is a simplified traditional pictorial depiction of an electric circuit. How you connect it depends on high one you buy. The alternator doesn't necessarily need 12v 24/7, but, depending on application, it needs a signal wire and/or field reference. Hi old thread here. Find ACDelco 19152464 ACDelco High-Amp Alternators and get Free Shipping on Orders Over $99 at Summit Racing! ACDelco high-amp alternators will provide your charging system with a significant boost. Do not wire this into the coil power wire that you use to switch the engine on & off (a seemingly elegant solution), since once the engine is running the alternator will feed power back through this wire, which will then power. Looking at the schematic for a tuff stuff alternator and it is showing that it needs a resistor in the small brown "Exciter" wire for the alternator. Some warning indicator circuits are equipped with a resistor in parallel with the lamp that permit excitation current to flow if the warning lamp burns out. It runs to the fuse block, not to the coil, as shown below. My 71 van has between the battery terminal and bulkhead connector that connects to the ammeter. Installed a Painless wiring harness and the alternator is not charging the battery. The exciter coil wire, to the alternator, on the CJ's is made of nichrome and has some sort of inherent resistance. Or, contact the alternator maker and ask them--they're usually pretty good about it--how that exciter wire was supposed to be connected. When reinstalled, the alternator as bench tested seems to be working fine but does not appear to be called upon to put out. I read something tonight on another forum about being able to boost the voltage output of a alternator by putting a resistor inline with the exciter. Some control field current by sourcing a positive current (other side of field winding connected to battery -). I've been lurking on the site for a while, getting lots of great info. The following diagram shows the wiring for a typical 3-wire alternator connected to our Infinitybox system. The field wire is brown at the alternator. If I plug the exciter wire back up with the engine running and the alternator providing 14. If you have confirmed your alternator is in good, working condition, I would start to check the wiring of that plug. ” Also the mounting is similar enough to FORD alternator dimensions that the 10SI or 12SI can be easily adapted onto many FORD engines. 1) Connect a voltmeter between generator B+ terminal and ground. EDIT - I don't like the 2wire circuit. The kits that I offer use a new 63 amp Delco 10SI cloned alternator. The Field is also connected to one side of the Voltage Regulator, through it back to Alternator on the other Field wire. Check the large power cable to the alternator and the fuse, usually, a large 40-60 amp fuse near the battery. As the alternator needs to 'see' a current on the exciter terminal I have no option but to replace the bulb with a low value resistor. A small 12v light bulb can be used, as it's resistance is near this range when filament is hot. I needed to protect the system from excessive charging by my 140A alternator, so I followed the Painless instructions and have installed giant wires to shunt excessive power to the battery. American Autowire says if the vehicle has a voltmeter and no warning light, the brown wire from the alternator "exciter" terminal is connected directly to the accessory bus on the fuse panel. ALTERNATOR GENERATOR STATOR FOR YAMAHA YBR 125 DC 8 COILS 81 YAMAHA SR185 EXCITER WIRING HARNESS. Once the alternator is mounted, there’s the wiring to deal with (and be certain to disconnect the battery negative before doing any work on the alternator). CS144 alternator is with a 6 groove serpentine pulley of the proper diameter. Make sure all connections, including battery ground cable, are clean and tight. I also used a American Autowire kit for my truck and thought it was exceptional. Does the same thing as the filament. resistor could be as many as thirteen 2. 5V or higher. alternator with a 63 amp. The sense wire, what you are calling the exciter wire should not be going through the alternator light. The swap itself is trivial. Power in kVA: 500, 2,430 kVA Voltage: 400, 450, 440, 415, 480 V. Green Exciter to Voltage Regulator 3. Looks like I need 15 Ohms on that wire. Exciter coils create the auxillary power for the sa200. Ground to block 2. alternator synonyms, alternator pronunciation, alternator translation, English dictionary definition of alternator. The wiring circuit I show in the pics is the same for your alternator. Parts are just part of what we do. The enable wire has bus voltage that goes on and off with ALT on and off switch in the cockpit. Please refer to the manual and wiring diagram that came with your alternator for more specific details. Just keep the resistor/bulb connected for about 5 seconds; that should do the job. also some time it would suddenly stop jumping around and read fine. The exciter wire is merely a 12V load (the bulb in the dash cluster) which causes the regulator to start putting out 13. (G) It won't take long before you have one of those days when you say "Wow, I should have bought one of. It is the exciter wire if you don't hook this up you will need to add a resister to drop the voltage going to the alternator to less than 6 volts. On a four-wire alternator, it’s one of the wires (the blue one) on the connector to the external voltage regulator. Exciter wire as stated needs to be a 12v, key on signal. Connecting the exciter or sense wire will cause the alternator to drain the battery slowly because it draws a small current through the sense line. The other terminal is the exciter. 0 volts because of the voltage drop that occurs in the wiring from the alternator to the main bus bar and on to the amps. ” Also the mounting is similar enough to FORD alternator dimensions that the 10SI or 12SI can be easily adapted onto many FORD engines. A rectifier bridge can contain 3, 6, or sometimes 8 diodes depending on its design. 6 voltsin the sensing feed. Is it necessary to wire a resistor in series with the switched voltage source? If I do need one, what size resistor should I use? Thanks. Wiring is really just about as simple as adding one wire from the BAT post on the alternator to the + post of the battery. boat tach bouncing, We just came back from a three week trip and part way through the port tach started bouncing all over the place. Bolts right in, more ampswin win. No need to rev your engine to kick on your alternator anymore with this kit. Apparently, half of the voltage regulator is in the alternator and the other half is in the ECU. Do not wire this into the coil power wire that you use to switch the engine on & off (a seemingly elegant solution), since once the engine is running the alternator will feed power back through this wire, which will then power. The pulley nut must be removed with an impact wrench. I did NOT install the resistor Painless provides in the adapter plug kit, because I figured I had the LED indicator with a built-in resistor. A fusible link is a short ~6" wire spliced into a main wire and has a rubber bump moulded onto it. Exciter current will now flow through bulb (on) and resistor.