When installing a fan on the flywheel, what should be aligned with the plastic bosses on the backside of the fan?

The correct answer is that the recess in the face of the flywheel should be aligned with the plastic bosses on the backside of the fan. This alignment is crucial because it ensures that the fan is properly secured to the flywheel and can operate efficiently without interference or misalignment. Proper alignment guarantees that the fan can effectively move air, which is essential for cooling and maintaining optimal operating temperatures within the engine or system it serves.

If the fan is not aligned correctly with the recess, it can lead to issues such as vibration, noise, or even mechanical failure. This alignment process is a standard practice in installation procedures to ensure that all components function as intended and contribute to the overall performance of the machinery. Understanding this relationship helps maintain the integrity and reliability of the system being worked on.