C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

alternator hot! with car off

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Old Jun 21, 2020 | 10:02 PM
  #1  
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Default alternator hot! with car off

Like I said. The car is off. Battery found drained. And the alternator is hot.
I replaced the 105a stocker with the powermaster 47803 140a.
Car is 91 l98.
Is the new alternator bad?

Need help!
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Old Jun 21, 2020 | 10:43 PM
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Most likely it has a shorted diode. I assume you didn't remove the stock one for the same reason?
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Old Jun 21, 2020 | 11:15 PM
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Old Jun 22, 2020 | 11:45 AM
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Correct.
I removed the old one cause it couldn't keep the battery up with the upgrades I have done... new fuel pump, radio, etc...
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Old Jun 22, 2020 | 01:29 PM
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Time for a new Alt
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Old Jun 22, 2020 | 03:04 PM
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How long was the car motor off?
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Old Jun 25, 2020 | 08:29 PM
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Several days until I installed the battery

Im sending it back.
Buying a 93 vette alternator 120amp
Lifetime warranty
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Old Jun 28, 2020 | 09:59 AM
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Default Alt

I put one in my 86.
no more rebuilding alternators every summer because of the Arizona heat.
and as a plus, it charges at idle and puts out more amps
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