What Is Rotor Runout?

How to Check a Rotor Runout

Rotor runout is the distance between the outer edge of a rotor and its hub. This measurement can be used to diagnose problems with engine performance, such as worn or damaged rotors. Rotor runout can be caused by a number of factors including incorrect assembly, worn or damaged parts, and metal-to-metal contact.  If this issue … Read more