Is it necessary to repair abnormal noise from the generator bearing?
2 Answers
Abnormal noise from the generator bearing should be repaired. The noise is caused by insufficient lubrication inside the bearing. If not properly repaired, it can lead to stalling during operation and, in severe cases, render the generator inoperable. The car generator is the main power source of the vehicle, functioning to supply power to all electrical equipment (except the starter) while charging the battery when the engine is running normally. Based on the three-phase stator winding of a standard AC generator, additional winding turns and lead-out terminals are added, along with an extra three-phase bridge rectifier. At low speeds, the output is from the original and additional windings in series, while at higher speeds, only the original three-phase winding provides the output.
It's absolutely necessary to repair a noisy alternator bearing because this is no trivial matter. I've been through it once - the bearing was humming, and I thought I could get by, but within days the alternator seized up. I was driving on the highway when it happened, leaving me stranded with a dead battery that couldn't charge, costing me hundreds in towing fees. The mechanic later explained that a worn bearing can damage the entire alternator and even affect engine components. Fixing a small bearing only costs around a hundred bucks, whereas neglecting it could lead to dangerous situations. I usually pay attention to lubrication during maintenance, but once you hear that noise, don't delay - take it straight to the shop. Safety comes first; saving a few bucks isn't worth the risk.
