Mazda MX-5 NA silhouetteMX-5 NA

BRAKE SYSTEM — Inspection (Disc pad / Disc plate)

P-20prose procedure

Inspection

Check the following and repair or replace parts as necessary.

Disc pad

Inspection — Disc pad

  1. 1
    Oil or grease on facing.
    Illustration of measuring disc pad lining thickness with a vernier/scale gauge held against the disc-pad surface.
    05U0PX-039
  2. 2
    Abnormal wear or cracks.
  3. 3
    Deterioration or damage by heat.
  4. 4
    Remaining lining thickness.
Thicknessmin.
1.0mm (0.04 in)

Disc plate

Inspection — Disc plate

  1. 1
    Runout.
    Illustration of measuring disc plate (rotor) runout with a dial indicator mounted on the suspension/knuckle, with the probe contacting the outer edge of the disc plate surface.
    05U0PX-040
  2. 2
    Wear and damage.
    Illustration of measuring disc plate (rotor) thickness with a micrometer at the outer edge of the rotor surface.
    05U0PX-041
Runoutmax.
0.1mm (0.004 in)
Thickness — Standard
18mm (0.71 in)
Thickness — Minimum
16mm (0.63 in)

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