Alternator heating
07-02-10, 06:01 PM
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Alternator heating
I have a '96 sc 300. The alternator gets very hot, hot enough to scald yuor hand after running for about 5 mins. Is this normal for this car? I'm on my second alternator trying to solve this, but both heat up pretty bad. Thanks
07-02-10, 07:56 PM
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Hmmm...that doesn't sound right to me...and you're saying that two separate alternators have done the exact same thing?!! The overheating sounds like it's overworked trying to keep up with a high current demand. I'd suggest looking at the rest of your electrical system to see what's draining so much current.
07-02-10, 08:38 PM
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Yes, the first is a 160 amp, which when cool, bench tests at over 100 amps. Under load in the car , it test's at negative amps, and seems to cycle positive intermittently at 20-30 amps. The second is a so called new alternator, 80 amp, it consistently puts out 40 amps. But both heat. Thanks again.
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