Alternator 19.6volts

Custom GSX · Sep 25, 2012

So I have a 90 GSX and recently my power steering hose started leaking and oil got to the alternator. It's started smoking and then glowing with some sparks. I checked it with a volt meter and 19.6volts Awww!!! So I pulled it and replaced it with a reman alternator. Checked again and still 19.6 volts and 20 volts at the battery. So my question is this normal which I don't think so and is there a voltage regulator somewhere else in the engine by to replace??????? Thanks tuners!

ncdirtrider249 · Sep 26, 2012

Your alternator should be charging anywhere from 12-14 volts loaded and unloaded. A battery should have anywhere from 12-14 volts to meet industry standards. I'm glad working at Advance Auto has taught me at least something haha

1slo1g · Sep 26, 2012

When my car was doing this it was the voltage regulator within the alternator. you need a new alternator.

JusMX141 · Sep 26, 2012

ncdirtrider249 said:
Your alternator should be charging anywhere from 13.5-14.3 volts unloaded. A battery should sit at 12.6 volts when fully-charged. I'm glad working at Advance Auto has taught me the basics, but not everything about charging systems.

Fixed.

O.P.- if your alternator is charging that high, it needs replaced. The voltage regulation is done within the alternator.

undefined0000 · Sep 26, 2012

Did you check the charge RIGHT after replacing the alternator? That 20v charge should dissipate pretty fast. Full charge on a battery is 12.6v.

DSM1G90 · Sep 26, 2012

Love cooking up batteries with that high rate of DC voltage...makes them swell up real good.

darkblues24 · Sep 26, 2012

Change your alternator before it blows your battery!! And it's gonna Cost u more money..

weep87 · Sep 26, 2012

yep alternator regulator

Custom GSX · Sep 26, 2012

Ya I know the charging rate and were it should be. And the possible damage to be done to the battery. It's just the I just put the alternator in. I guess I got a bad one and I'll go shopping for another one.

ncdirtrider249 · Sep 26, 2012

Thanks for the fix JusMX141

Custom GSX · Sep 27, 2012

Ok guys after 2 new alternators same readings. I double checked my volt meter and found out that it is reading way wrong. Guess it needs to go to fluke and get repaired. Damn!!!

DSM1G90 · Sep 27, 2012

Go to Rat Shack and get you a decent priced, digital VOM - one good thing that comes out of 'the Shack'. it's what I've been using for years.

- DSM

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Alternator 19.6volts

Custom GSX

ncdirtrider249

1slo1g

JusMX141

undefined0000

DSM1G90

darkblues24

weep87

Custom GSX

ncdirtrider249

Custom GSX

DSM1G90

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