What is the primary purpose of performing a laser bore alignment on an engine block crank journal?

Performing a laser bore alignment on an engine block crank journal is primarily aimed at checking horizontally and vertically for offset and angularity. This process is crucial because it ensures that the crankshaft is properly aligned within the engine block. Misalignment can lead to uneven wear, excessive vibration, and potential engine failure.

Using laser technology provides a precise measurement of the alignment, allowing millwrights to identify any discrepancies that need to be corrected. Proper alignment ensures that the crankshaft operates smoothly and efficiently, promoting longevity and reliability of the engine.

Adjusting the fuel mixture, ensuring the proper angle of the crankshaft, and balancing engine components are important aspects of engine performance but are not the primary focus of laser bore alignment.