What is the Normal Temperature Range for a Car Alternator?

1 Answers
MacJoy
07/30/25 7:58am
Car alternator temperature is considered normal when below 50 degrees Celsius. Here are specific maintenance recommendations for car alternators: Monitor bearing wear: If insufficient lubrication is detected, add a few drops of engine oil through the oil cup opening. Be careful not to let oil seep into the commutator, as this may affect electrical transmission efficiency. Uneven brush contact surface: Replace components when spring elasticity is insufficient or brushes are excessively worn. For brushes that are too short but undamaged, use shims in the bracket to ensure proper contact with the commutator. Dust cover: Ensure the alternator's dust cover remains securely in place. Never operate without it, as dust ingress may cause mechanical failures.
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