Is it considered a failed functional timing test if the actual timing exceeds the manufacturer's specifications?

In a functional timing test, the primary goal is to ensure that the timing of the engine's components aligns with the manufacturer's specified criteria. When actual timing exceeds the manufacturer’s specifications, it indicates a deviation from the intended operation of the engine. This deviation can lead to potential performance issues, increased emissions, or engine damage over time.

Since the question focuses specifically on whether the actual timing exceeds the specified limits, a straightforward interpretation is that any deviation outside of these specified ranges constitutes a failure in the timing test. Therefore, the answer stating that it is a failure because the timing is not within the specification window is correct. Recognizing that the timing must meet exact standards is crucial for maintaining engine efficiency and compliance with emissions regulations.