Answer
Jan 10, 2025 - 08:26 AM
An accessory drive belt tensioner is a component in an internal combustion engine that maintains the correct tension on the engine's accessory drive belt, which powers various auxiliary components like the alternator, power steering pump, and air conditioning compressor. The tensioner ensures that the belt operates efficiently and quietly, preventing slippage or excessive wear. It typically consists of a spring-loaded arm with a pulley that adjusts to maintain consistent belt tension as the belt stretches or as engine vibrations occur.
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