Disc Rotor RUNOUT Check

2014 Subaru Legacy 2.5i, Automatic CVT TransSECTION Disc Rotor RUNOUT Check
  1. Check the front hub unit bearing for free play and runout before the inspection of disc rotor runout limit. Refer to INSPECTION .
  2. Tighten the wheel nuts to secure disc rotor.
  3. Set a dial gauge 10 mm (0.39 in) inward from the disc rotor outer circumference, and check the disc rotor runout while rotating the disc rotor.

    Disc rotor runout limit: 0.05 mm (0.0020 in)Β 

    Fig 1: Checking Disc Rotor Runout Using Dial Gauge
    G07915614Courtesy of SUBARU OF AMERICA, INC.
  4. If the runout limit is exceeded in the inspection, replace the disc rotor.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.