Mechanical idle stops will always be set to a higher speed than what?

The concept of mechanical idle stops is integral to engine performance management. These stops are designed to prevent the engine from idling too low, which can lead to stalling or inefficient operation. Setting the mechanical idle stops to a higher speed than the engine's idle speed ensures that the engine can maintain stability and function properly under various operating conditions.

By regulating the minimum speed at which the engine can operate, mechanical idle stops help to ensure that the engine remains responsive and does not succumb to lower revs that could compromise performance. This is particularly critical during idle conditions where the engine needs sufficient fuel and air mixture to remain operational, especially when additional loads may be applied inadvertently, such as electrical components drawing power.

In contrast, the engine's maximum throttle position, recommended idle speed by the manufacturer, and the speed at which the engine shows no load may not be directly tied to the idle stability provided by the mechanical stops. For instance, while the recommended idle speed is a guideline for optimal performance, it does not guarantee the engine's ability to avoid stall conditions under all circumstances. Therefore, aligning the mechanical idle stops above the engine idle speed is crucial for maintaining optimal function and avoiding performance issues.