FAA Powerplant Written Practice Test

What should be done before any overhaul of a piston engine?

1. Complete a full engine run-up

2. Inspect all the fluids

3. Perform a thorough visual inspection

4. Drain all oil and coolant

The correct answer is: Perform a thorough visual inspection

Before any overhaul of a piston engine, performing a thorough visual inspection is critical. This process allows technicians to assess the condition of the engine and its components visually, identifying any visible signs of wear, damage, leaks, or other potential issues that could affect performance or safety. A visual inspection can reveal cracks, corrosion, and general cleanliness that may need remediation before the engine is disassembled for overhaul. In contrast, while other steps like inspecting fluids, draining oil and coolant, or conducting a run-up are important aspects of engine maintenance, they are typically performed after the initial assessment. The visual inspection serves as a preliminary step that informs subsequent actions and helps ensure that the overhaul process is initiated correctly and efficiently.