Alternator Repair

[dr. d]

So true with cars of the '70's and earlier. Today's cars the voltage regulation is done by the PCM using pulse width modulation with inputs from the TPS, battery temp sensor, electrical load sensor and maybe other sensors. The Toyota Prius don't even have a belt driven alternator.

yespo.
the scenario we are painting, is a 70s scenario.

[mina_nuka]

Older old cars used electro-mechanical voltage regulator which were generic or not precise. You had to tailor or tune the voltage regulator to the car's alternator, expected electrical load and battery size. In most cases, it also varies with the knowledge and skill level of the mechanic or technician. The14 volt in question is too low of a system voltage for the modern car.

[sirkosero]

Sir paclarify what you mean by

"The14 volt in question is too low of a system voltage for the modern car"

The common passenger car runs at 12 volts to a little higher than 13v.

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[mina_nuka]

Sir paclarify what you mean by

"The14 volt in question is too low of a system voltage for the modern car"

The common passenger car runs at 12 volts to a little higher than 13v.

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A fully charged automobile nominal 12 volt battery actually has 12.6 volts at around 70°F and battery electrolyte specific gravity of 1.265, to charge the battery, the system voltage has to be at least 13 volts but at that voltage, there is a risk of undercharging since there are a couple of variables as you drive. The conditions of driving varies the voltage unlike that of a power generator that is designed to produce a linear output. To prevent undercharging, the system voltage is raised up to as much as 15.1 volts in some Toyotas. Many will think otherwise but please do some research. Similar to your bank account, you must have more money than how much you intend to spend.

[dr. d]

won't that 15.1 V have a negative effect on the electrical appliances?

[sirkosero]

won't that 15.1 V have a negative effect on the electrical appliances?

This is also what i was thinking. Im not comfortable having my alternator produce 14 volts or up. The regulator IC should be regulating thr voltage to within specs. More than 13.9volts is overcharging for me

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[dr. d]

This is also what i was thinking. Im not comfortable having my alternator produce 14 volts or up. The regulator IC should be regulating thr voltage to within specs. More than 13.9volts is overcharging for me

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sirk, mukhang napabayaan na tayo ng panahon...
heh heh.

[sirkosero]

sirk, mukhang napabayaan na tayo ng panahon...
heh heh.

Hehe my near 40 year old reliable had one of them regulators that was separate from the alternator.

When the alternator conked out i replaced it with alternator that had the built in regulator IC. It was from a rayban galant, i think.



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[12vdc]

13.8V is the ideal float charge V for any 12V battery system while 56V for 48V system.

[ninjababez]

Pag 12.5-13.4v * full load on accesories ng alternator, pwede ba ma repair ito para maging 14v stable * full load!

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Mga bros, my reason for posting kasi is bawas lifetime ng car batt pag di na fufull charge madalas. So mas maganda ba talaga mag invest ng car batt charger?

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[dr. d]

Mga bros, my reason for posting kasi is bawas lifetime ng car batt pag di na fufull charge madalas. So mas maganda ba talaga mag invest ng car batt charger?

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if you are a night driver, yes, a charger might be good idea.
i have one, but i use it only when the car wouldn't start anymore.
so far, my battery dies after the warranty period naman. except once.

[baludoy]

May digital car batt charger din ako nabili from a fellow tsikoteer pero hindi ko pa din nagagamit.




when you look into the abyss, the abyss looks into you

[ninjababez]

May digital car batt charger din ako nabili from a fellow tsikoteer pero hindi ko pa din nagagamit.




when you look into the abyss, the abyss looks into you

Plano ko nga mag DIY ng charger lol

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[dr. d]

Plano ko nga mag DIY ng charger lol

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we did. many years ago. regularly.
but "the novelty has worn off." translation: eventually, tinamad din kami.

[ninjababez]

we did. many years ago. regularly.
but "the novelty has worn off." translation: eventually, tinamad din kami.

Ganun din naisip ko, pero yun feeling kasi na ginawa mo yun gamit out of "garbage"

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[CVT]

13.8V is the ideal float charge V for any 12V battery system while 56V for 48V system.

That is correct, at least for the 12v system which I am familiar with.

Our toyota's voltage runs at about 13.4v typical.

Battery life so far is 4 years on the average.

[Janemar]

Not really applicable to all 12v system.

Some system uses Ca-ca battery and can run as high as 15.5vdc.

[barako ba ma]

ca-ca battery charging voltage - Google Search

[dr. d]

Ganun din naisip ko, pero yun feeling kasi na ginawa mo yun gamit out of "garbage"

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yespo. personal pride. but those were times when assembling one was a bit cheaper to buying one, that is, if one could find one to buy.
today, things are so mass-produced, it's easier and cheaper to buy the more streamlined commercial product.

take the ctek. i can't possibly construct one that looks as compact, as sleek, and as cheap, as that one.

[ninjababez]

yespo. personal pride. but those were times when assembling one was a bit cheaper to buying one, that is, if one could find one to buy.
today, things are so mass-produced, it's easier and cheaper to buy the more streamlined commercial product.

take the ctek. i can't possibly construct one that looks as compact, as sleek, and as cheap, as that one.

Yeah,i just checked olx bro
1.2k chinamade looks decent
Meron pa parang mobile phone charger * 300 php lang hahaha

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