Technician A readjusts the wheel bearings before measuring lateral runout. Technician B resurfaces or replaces rotors that have more than 0.003 inch of lateral runout. Who is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct in their approach. Technician A is correct in readjusting the wheel bearings before measuring lateral runout because improper adjustment can lead to inaccurate measurements. Technician B is correct in resurfacing or replacing rotors that exceed 0.003 inch of lateral runout, as this amount is generally considered beyond the acceptable limit for most vehicles, indicating the rotor could cause vibration or uneven brake pad wear.

Technician a Readjusts the Wheel Bearings Before Measuring Lateral Runout