Installing a high power alternator in your boat

April 12, This may get to be a bit long, but over the past few years I have had a number of Alternators go bad. The thing is they do not really quit. The problems are intermittent. We often drive for an extended time. During the night time everything works fine, nice cool air. During the daytime when things heat up everything starts to go South. When I install a new Alternator everything works fine for about 12 to 18 months. This last trip things went bad again, so I stopped and shutdown the engine. Removed the alternator exciter wire.

Can i hook up a 2nd alternator in my car or

Likes Received 11 Everybody is right. On the 10 SI units, the lead on the left, looking from the rear of the unit, marked ‘1’ is generally called the ‘idiot light’wire. GM once placed a resistor in parallel with the light, in case the bulb burned out.

What is Self-Exciting, one – two – three wire hook-up? Universal Alternator Mounting Brackets and Accessories Makes Alternator Adaptation Easy. Kit installation information at bottom of Page. Click Here for 6-Volt, Negative Ground Alternators: Complete alternators for 6 .

The Combiner is suitable for engines with alternator ouputs up to amps. This covers most outboard engines. If you have a higher output, you should use the Combiner This involves extra cables to the engine and often voids your warranty. Battery isolators also have a built in voltage drop so now your starting battery and your trolling battery no longer get a full charge. Whenever the outboard engine is running, the combiner will share the charging output with the trolling battery.

When the engine is off, the trolling battery is separated from the starting battery and will not accidentally discharge it.


Knowledge of this exclusive design is very important when up-grading the Chevy electrical system. We need to get electrical power from the alternator to the parts—not just charge the battery. At the time of this writing, the popular Chevy main power system is about 40 years old. The original version was installed with the first alternators, in Chevy models.

We often expect better performance from these cars than when they were new. Routing and distribution of alternator power output is handled by the wiring system.

May 02,  · The alternator is the square back style; 70 – up. I’ve upgraded to an electronic voltage regulator so just grounding the second field wire isn’t going to work. I thought the up alternators put out more than the older style alternators.

When jumpstarting a car you essentially give the dead battery just enough boost to start the engine and then rely on the alternator to charge the battery the rest of the way. When using a battery charger, you allow the battery to charge all the way before it will be used again. This should answer important questions such as what the voltage requirements are for charging your battery and whether or not you should remove it from the vehicle before charging.

There will be a manual with your battery charger that provides details for the appropriate use of the charger. Working in a well-ventilated area will help dissipate the hydrogen gas that batteries generate from the sulfuric acid within their cells. Also, make sure to keep any other volatile substances, such as gasoline, flammable materials, or ignition sources flames, cigarettes, matches, lighters away from the battery at all times.

Glasses, gloves, and other protective gear is a good precaution. Hydrogen released within the battery quickly converts to a gas and expands, this can cause the battery to explode if venting mechanisms fail. These accessories draw power from the battery and should be turned off before removing or charging the battery. Most batteries will be found either under the hood of the vehicle or in the trunk.


This design uses a self exciting field which means when it spins at a sufficient RPM, the alternator will start charging. When the engine stops rotating, it turns itself off. Keep in mind that the engine has to be turning around RPM in order to spin the alternator at RPM in order to get it to start charging. Just start the engine and “blip” the throttle in order to get the alternator to turn on. You don’t have to keep the RPM up, once the alternator is energized with a quick blip you can let the engine idle back down.

If the max rpm is exceeded it can cause damage to the internal armature and cause a failure.

Oct 08,  · The alternator does put out so obviously the exciter wire is not needed, but would it prevent having to rev up the engine to get the alternator started? If so, what voltage needs to be put to the exciter terminal?

Alternator whine is caused by a difference in electrical potential voltage between two points. It’s usually caused by a ground connection that is less than ideal. The main culprits are the amp, the head unit and any intermediate components such as crossovers and equalizers. Basically any component that touches the low level music signal from RCA cables. It’s usually cured by finding the source of the noise entrance and re-grounding that component.

Troubleshooting Car Audio Noise You can usually isolate the head unit as the problem by disconnecting the RCA cables from the amplifier and inserting a muting plug RCA plug with the connectors shorted together.

Automotive Alternator

I recommend using small words and speaking slowly as if conversing with a small and rather dim-witted child. But you will be telling them the truth. ALL our energy has always come, and will always come, from the sun. Everything we power ultimately derives its energy from the sun – even your Big Block.

This makes it very easy to wire up and it also has the added benefit that the voltage regulator is no longer a mechanical device but now semiconductor based – no adjustments! There is a common misconception about alternators and the term one wire alternator is often thrown about.

Construction of real electromagnetic machines Construction and application of three-phase windings Automotive Alternator Schematic Diagram An automotive alternator is a three-phase generator with a built-in rectifier circuit consisting of six diodes. The spinning magnet is actually an electromagnet, not a permanent magnet. Alternators are designed this way so that the magnetic field strength can be controlled, in order that output voltage may be controlled independently of rotor speed.

This rotor magnet coil called the field coil, or simply field is energized by battery power so that it takes a small amount of electrical power input to the alternator to get it to generate a lot of output power. This circuit, if present in the alternator you choose for the experiment, is unnecessary and will only impede your study if left in place. Automotive Alternator Illustration Experiment Instructions First, consult an automotive repair manual on the specific details of your alternator.

You may need more specific information, and a service manual is the best place to obtain it. Disassemble the unit and locate terminals for connecting to the two carbon brushes. Locate the three-phase line connections coming from the stator windings and connect wires to them as well, extending these wires outside the alternator case through some vent holes. Use the largest gauge wire that is convenient to work with for these wires, as they may be carrying substantial current.

1 Wire Alternator

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3 Wire Alternator Wiring Diagram: single wire delco alternator wiring diagram in hook up instructions. alternator wiring diagrams. echanting might chevy alternator wiring diagram start power. how to wire a alternator wiring diagram single instructions. denso alternator wiring diagram.

On most leds with leads, the longer lead is positive. Leds are current sensitive devices, meaning that if the current flow through the led isnt limited, the led will burn out. Usually this is prevented by using a resistor to limit the current thru the led. Leds are also sensitive to polarity, meaning the correct wire must be on the positive and the correct wire on the negaive lead of the led or it wont work. We suggest you add the correct current limiting resistor first if you dont know which is the positive and negative wires on your power supply Because leds are semiconductors, you must apply a certain voltage called forward voltage drop before the led will be fully turned on, but when you reach that forward voltage drop, you must then make sure that the current is limited to the manufacturers maximum rating or under.

When you buy leds from us, we tell you the forward voltage drop and maximum current. You can then use our current limiting resistor calculator to calculate the correct resistor based on your power supply voltage. Using your inexpensive meter, set the meter to read VOLTS DC, and put the red positive lead on the positive of your power source, and the black negative lead on the negative of your power source, and the measure the voltage of your power source.

If the reading is too high or too low, you can either adjust your power supply voltage, or adjust the resistance value of your current limiting resistor s until you reach your desired reading. If you had 6 red leds in series, then 12 volts at 20 milliamps is required or Wired In Parallel: Having voltage much higher than needed results in the need for very large, expensive, hard to find, and inefficient current limiting resistors that waste energy by getting real hot.

Mopar Charging System

One frustrating malady is a malfunctioning or inadequate charging system. Having to jump-start your hot rod nearly every time you shut it down is about as aggravating a problem as you can experience. Retro Meets Techno Perhaps the most exciting aspect of the new PowerGEN is that it provides the look of an early-style generator with the output and reliability of a modern alternator; plus it offers the ease of one-wire installation and operation.

Powermaster engineered the PowerGEN from the ground up to be completely brand-new, and high-tech engineering and materials are used throughout its manufacture. The success of the initial PowerGEN was overwhelming. The traditional hot rod crowd a huge and continuously growing segment of the hobby had been waiting semi-patiently for someone to successfully develop the perfect finishing touch in their quest for true retro engine styling-and Powermaster heeded their call.

Before power inverters got cheap there were boxes you could hook to the externally-regulated alternator on your vehicle to kick it up to v so you could run your appliances off of it. 12v is a good tradeoff for a car electrical system between cranking and lighting power and the number of cells you have to stuff into the battery compartment.

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how to hook up an alternator old school

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