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Pilot Runout

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The brake discs must be removed to carry out the runout measurements.
  1. Position the special tools as close to the hub face as possible. Zero the indicator to allow the pointer to deflect either way.
  2. Fig 1: Checking Pilot Runout
    GF0024581Courtesy of FORD MOTOR CO.
  3. Rotate the hub one full turn and note the maximum and minimum readings. The difference between the maximum and minimum readings is the total pilot runout. Pilot runout must not exceed 0.15 mm (0.006 in).