What could indicate a slipped alternator belt during inspection?

An indication of a slipped alternator belt can indeed come from various observations during an inspection, each of which highlights a different aspect of belt performance and associated hardware. A visibly worn belt suggests that the material has degraded over time, which can lead to inadequate grip on the pulleys, potentially causing slippage. While a worn belt alone might not conclusively mean slippage, it is a significant contributor to the issue.

Loose alternator bolts also provide critical information. If the bolts securing the alternator are not tight, the alternator may not be properly aligned or positioned, which can prevent the belt from making good contact with the pulley. This misalignment can lead to slippage, as the belt may not track properly on the pulley, reducing its effectiveness in transferring power from the engine.

Poor grounding may seem less directly related, but it can still impact the performance of the alternator and, consequently, the belt. If there is poor grounding, it can affect the electrical performance and operational efficiency of the alternator, leading to increased strain on the belt. This strain can exacerbate any existing conditions that contribute to slippage.

Each of these factors—worn belt, loose alternator bolts, and poor grounding—plays a role in the overall functionality