When should the Motoring Run Procedures be performed?

• A. After engine maintenance
• B. After engine start without fuel introduction
• C. After any aborted start during which fuel was introduced
• D. After a successful engine start

Answer: (C)

The Motoring Run Procedures should be performed after any aborted start during which fuel was introduced. This procedure is critical in ensuring that the engine is cleared of any fuel that may have accumulated during the unsuccessful start attempt. When fuel is introduced to the engine but the complete ignition process does not occur, there is a risk of fuel pooling in the combustion chamber, which can lead to potential fuel-related issues in subsequent start attempts. By performing the Motoring Run, the engine is turned over without fuel being introduced, allowing for the removal of any residual fuel, thus promoting safe and effective engine operations.

This procedure helps ensure that the conditions are optimal before attempting another start, reducing the likelihood of a repeat of the aborted start scenario and maintaining the integrity of the engine's systems.