You may be wondering, as I do, what an alternator is and what does it do. But the fact that you opened this post and you are reading it you will orient yourself on this particular auto part.
There was a time when I heard about it but I could not figure out how does it look, where is it located and what does it do in the performance of the engine.
Where is it located
The alternator is located at the drive belt end of the engine. It is conspicuous and is accessible from under the hood.
As you can see here in this model, the alternator is located in the upper right side of the engine. In other models, it is located on the left side.
In the image below you will see how the alternator is placed or attached to the left side end of the engine.
What does the alternator do?
There are two functions of the alternator in the engine operation. It charges the battery and it helps in the power booster brake system.
Charging the battery
When the engine is started and ran the alternator starts to work in charging the battery. The charging output of the alternator must be 14.2 V to 14.5 V as measured right across the battery posts.
When the alternator charge output is more than 14.5 V when revved, it will overcharge the battery in the long run and the battery cell will not last long.
Alternator Boosts Brake System
As the alternator is run by the engine it does not only produce current to charge the battery but it also produces air supply to the brake vacuum booster. In that way, the air that circulates in the brake vacuum booster is compressed to help push the brake piston when the pedal is pressed making it convenient for the feet for it doesn’t need much effort to apply a brake pressure whether you are driving a huge vehicle or a small car.
Signs of a Failing Alternator
Dim headlight-when the alternator starts to fail you will notice that the headlights are dimming or it may even flicker.
Dying battery-meaning your battery will gradually weaken because it is not being charged. All electrical parts that needed to work when you needed them are now failing too. Flashers, stoplights or brake lights, and fans will no longer function normally.
Difficult to start the engine-this is because of a weak battery. The more you crank the engine and it doesn’t start the more the battery will become weak.
Engine Stall-a time will come that your engine will stall because the battery is consumed and the alternator produces no current, no fire that ignites the petrol inside the combustion chamber.
It’s Time for Repair or for Replacement
When everything else fails your only alternative is to bring it to a technician for repair. Usually, repairs will cost you 350 to 400 pesos when no parts are for replacement. However, it will cost you more if you buy for replacements of parts but it is more costly if you will replace the alternator itself.
If the technician advice you to buy a piece of parts for more than three thousand it would be better to buy a brand new alternator. than to spend more than the half price of the brand new one.
In Case You Need an Alternator
Alternators and Generators for
Toyota, click here
Mitsubishi, click here
Honda, click here
Suzuki, click here
Trucks and SUVs, click here
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