An engine with a mechanical governor runs too fast. Technician A says that the governor is damaged. Technician B says to remove the governor spring and start the engine. Who has the best advice?

In this scenario, both technicians provide insights that could hold merit depending on the specific circumstances of the engine's operation. Technician A suggests that the mechanical governor might be damaged if the engine is running too fast. This is a valid consideration because governors are designed to regulate engine speed by adjusting fuel flow or other parameters. If the governor is malfunctioning or damaged, it could fail to limit the engine speed effectively, leading to excessive running speeds.

On the other hand, Technician B advocates for removing the governor spring to test the engine. While this may provide immediate feedback on whether the governor itself is functioning correctly, it is not generally advisable to operate an engine without a governor, as it can create unsafe conditions. This action can lead to uncontrollable engine speeds, which may cause damage to the engine or pose hazards during operation.

Ultimately, Technician A points to a potential root cause (the governor's damage) which would be essential to address, while Technician B’s method might help in diagnosing the issue further but lacks consideration for safe operational practices. Therefore, acknowledging both technicians’ perspectives as partially correct leads to a comprehensive understanding of troubleshooting procedures for issues related to engine governors.