Chevy Alternator Not Charging

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Would it be possible to use a larger generator and use the gears on a bicycle to get it turning to the appropriate RPM? You can peddle harder to get more watts per turn, or you can peddle easier to get fewer watts. You shift to bigger gears when you have momentum, you shift to smaller gears when starting off or going up a hill. You can do it however you want. You can always salvage a car alternator, that may produce more for you and be harder to turn. Really, what you want is something that you can comfortably generate power with. Or would you rather peddle for 1 hour at a normal stride?

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In the case of the Corvettes one wire of the gauge goes to the positive post on the horn relay, which receives its power directly from the 12 gauge wire alternator hot lead. The other leg of the gauge goes to the positive post on the starter solonoid, which then goes to the battery positive. The galvanometer is actually reading the slight voltage difference between the positive terminal on the horn relay and the positive terminal on the starter.

The voltage differential is then created from the length of wire and other applications that occur between the horn relay and starter. When the battery is charging, there is a bit more voltage at the horn relay hot lead.

Alternator AC Leakage A n alternator generates current and voltage by the principles of electromagnetic condenser charges up, the resistance should increase to infinity. Any other reading indicates that you should replace the condenser. If the condenser is on the car, make.

Click on thumbnail to see larger picture. The CS weighs less, is smaller in diameter but uses the same 6. There is also a amp, CS version if you need more output because you’re running large amounts of electrical equipment in your vehicle such as high-powered stereos. This conversion is designed for cars with internally regulated alternators.

If your car has an externally regulated alternator you will need to convert it first. Use this diagram and go to Alex Bilan’s Alternator Conversion webpage for more information on converting to an internally regulated alternator. You will need amp CS alternator from and late ‘s GM truck or full size car with mounting ears that are deg apart photo 3.

Electronic-Voltage Regulator And Alternator – Juice Maker!

Moreover, at idle the situation is much worse, with the alternator putting out only a fraction of its rated capacity at low rpm. In fact, when electronic ignition made its debut as a production system, Chrysler had already switched to solid-state electronics in the charging system with the electronic voltage regulator and the corresponding dual-field alternator. For racers who wanted to retrofit to the new ignition system, a race-only, constant-voltage regulator was offered through Direct Connection now Mopar Performance to make their ignition system compatible with the old charging system.

These days, handling the electrical load with power-hungry aftermarket components, such as high-powered ignitions, fuel pumps, electric fans, and the like, will tax the stock charging system well beyond its output, so you may find yourself asking for jumper cables at the next cruise night. OE Mopar alternators were continuously upgraded throughout the years, both in max-rated capacity and low-speed charging ability.

In the Chrysler alternator was redesigned to produce 78 amps, which was higher than the previous alternators.

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This particular model 10SI, used in the s and early 80s is the one you’ll find on the generation of GM cars most often used in demolition derbies. It was also used in a lot of off-road equipment, so they’re generally cheap and easy to find. These instructions also apply to the 12SI series, which is similar but can be distinguished by the water-pump style cooling fan on the front flat front instead of individual fins.

This is the main power wire that goes directly to the battery. Make sure it is a heavy gauge since it has to carry the full output of the alternator up to amps. The leftmost of the two spade connectors around the perimeter of the alternator will sometimes be marked “1”. This is the field wire that energizes the alternator; without it, the alternator won’t start charging.

Choosing the Right Alternator for Your Musclecar or Hot Rod

Grease or petroleum jelly. Remove the battery cables from the battery terminals by loosening the nut on each cable clamp. Once they are loose, always remove the cable clamp from the negative terminal first. Reverse the procedure, positive first, negative second, when replacing the cables.

Wiring an alternator. This diagram shows how to wire a Delco (GM) internally regulated 3-wire alternator. This particular model (10SI, used in the s and early 80s) is the one you’ll find on the generation of GM cars most often used in demolition derbies.

B the big wire connected to the battery positive , and three others, I call top, mid and bot. You must spin the shaft at least rpm. A typical speed up in automotive applications is 2. A 12V lead-acid sealed or flooded battery must be present. The battery provides the initial field current to bootstrap the alternator, and it acts as a giant filter capacitor for the alternator ripple. The system MUST have the battery Make sure the battery negative is grounded to the frame of the alternator.

Small Engine Parts

When these cars were originally built, a amp alternator was the largest you could get, if you happened to check the correct box on the order sheet. Today, modern cars often have their smallest alternator sized at amps, and in many cases the minimum is over Attempting to run modern components on an old alternator is a recipe for charging system issues, or worse yet, damaged or failed electrical components. Upgrading your current alternator is one of the easiest bolt-on enhancements you can make to your musclecar, hot rod or even your daily driver.

Dual Battery Diagrams & Ideas. IDEA 1. This is the typical dual battery install. If you are running a ‘Normal’ alternator (around 60 amp output) then you can probably get away with an oil pressure switch for connecting the two batteries. For the line up, I priced some hydraulic line, rated for petrolium and over PSI, with 1/8″ NPT.

Low RPM turn on and charge Fits factory applications Low and high current applications Multiple finishes available But now that people are driving their classic cars more often, and upgrading them to be more drivable, they are also adding more electrical components so that driving them is more enjoyable. Some cars also have an air suspension system, meaning the compressor needs to keep that air tank full — and that draws on the electrical system more than ever was intended. Upgrades to digital ignition boxes and alarm systems also add to the amount of wiring that is added to a vehicle; people are also adding electric cooling fans to replace the mechanical fan.

So how do you upgrade an electrical system that was never designed for all of these accessories? Many factory alternators from the classic car era had gauge wires, which are not sufficient to handle higher alternator outputs. One solution to the charging dilemma is to upgrade to a single-wire alternator that puts the power directly to the battery — and only when the engine is running.

What Determines The Output? These alternators are designed to fit the factory brackets, so no special bracketry is required. We checked out Powermaster Performance and Tuff Stuff Performance to get a better idea of how to choose a one-wire alternator, and to learn more about them.

One-Wire Alternators: Are They Better Or Just Easier To Hook up?

Yes, every version of every make is a bit different. It works but doesn’t put out enough oomph at idle with the headlights on, fan on high, stereo on etc. Beyond stock, it sounds like you have “upgrades’ loading your electrical system. Listing those upgrades and their power draw will help to review your system for weaknesses that should be addressed, how much power you need, and how to get it.

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How to Rewind an Alternator This will cover rewinding of an alternator stator for use in a wind turbine generator. Traditionally, the use of car alternators is discouraged in favor of homemade slow running axial flux generators. In other words, not gonna happen. Im using a Hitachi alternator from an early ‘s Datsun that had an external regulator mounted on the fender in the engine bay. I figured this being my first foray into alternator rewinding, it would be much easier learning on a simple little 35Amp alternator like this.

The downside is the rather low output and I probably wont go to all the trouble of mounting it on a pole too. Be that as it may, it serves as an example of how alternator rewinding is done, whether it is just repairing for auto use, or modding for windmill use.

12 Volt Electrical Systems

Likes Received 11 Yes it is true that you can ground the secondary brush on a 10 SI Delco to make it give full output. The little tab behind the “D” hole grounds the brush lead and causes full output. The rotor is always hot and the regulator just supplies a ground path on a 10 SI. Appling power to a the excite lead on a 10 DN gives the same results. I really advise against running full loads, especially reverse, through a 10SI diode.

May 16,  · Sounds like the issue is in the wiring. The alternator passed the tests, so you have eliminated that. If you have an older SI model (2 flat connectors in the plug) then there are 3 wires you need to hook up.

PA-Performance is widely know for their high performance charging and starting systems. They have specialized in high output alternators for the Mustang for nearly a decade. Now this is a amp 6G series alternator that comes complete with an internal voltage regulator and a pulley that allows you to reuse your factory belt. Although, I would recommend replacing your belt while you’re in the area, since you’re going to be replacing your alternator anyway.

This is a direct replacement that increases the charging capacity at all rpm ranges without any modification necessary. Providing amps of idle and amps at max. Now I will say because this unit provides higher than stock output, you will need to upgrade your main power wire. This is because the stock OE power wire was not designed to handle the increase load that this high amp alternator provides.

Luckily PA-Performance offers this upgrade and it’s available in the drop-down menu on the product page.

Choosing the Right Alternator for Your Musclecar or Hot Rod

This is the typical dual battery install. This is a quick way to wire dual batteries so both don’t become discharged when an appliance is left on or over used. The second battery is isolated from the primary circuit when the engine oil pressure drops, like when you turn the engine off I’ve built this system several times, everyone that has it seems to be happy with it, and I’ve never been stranded with it.

Off roaders, in particular ones that work or do trails by themselves need the capacity to not only Isolate one battery, but to be able to ‘Self Rescue’.

Aug 27,  · Im afraid bandit is right, you just dont run a wire to the alternator from the battery, the wire that seems to be, sorth of directly from battery to alternator, is actually from alternator to battery and there is fuses/circuits in : Resolved.

Many thanks for creating this particular instructables. Kind Regards Si 2 months ago Reply Please Advise Would you please provide the details of the coils internal measurement or point me in the right direction? Kind Gegards ictinc 2 months ago Reply Respect!!! I’ve come across this project many times. Now that I’ve finally decided to built my own windmill, I want mine based on this one. I do however have some questions. I would like my generator to output volts AC with a minimum of watts.

How would I need to change the windings on the coils to do so? Also, would there be any disadvantages by changing the output voltage to v AC? The reason I would like the higher output is because I eventually want to connect it to the grid. I also don’t like the hassle and expenses of charging batteries. My actual design of the windmill would largely be the same, however I would like to try to attach the magnets to the tips of the blades instead of in the center.

1 wire vs 3 wire alternator plus other tips for classic cars muscle cars Episode 260 Autorestomod


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