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Thickness And Parallelism

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  1. Raise The Front Of The Vehicle, And Support It With Safety Stands In The Proper Locations (See Safety Stands ).
  2. Remove The Front Wheels.
  3. Remove The Brake Pads (See front Brake Pad Inspection And Replacement ).
  4. Using A Micrometer, Measure The Brake Disc Thickness At Eight Points, About 45° Apart And 10 Mm (3/8 In.) In From The Outer Edge Of The Brake Disc. Replace The Brake Disc If The Smallest Measurement Is Less Than The Max. Refinishing Limit.

    Brake Disc Thickness: 

    Standard: 24.9-25.1 Mm (0.98-0.99 In.) 

    Max. Refinishing Limit: 23.0 Mm (0.91 In.) 

    Brake Disc Parallelism: 0.015 Mm (0.0006 In.) Max. 

    NOTE: This Is The Maximum Allowable Difference Between The Thickness Measurements.
    Fig 1: Measuring Brake Disc Thickness
    G06232091Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. If The Brake Disc Is Beyond The Service Limit For Parallelism, Refinish The Brake Disc With A Honda-Approved Commercially Available On-Car Brake Lathe.
    NOTE: If The Brake Disc Is Beyond The Service Limit For Refinishing, Replace It (See front Brake Disc Replacement ).
  6. Install The Brake Pads (See front Brake Pad Inspection And Replacement ).
  7. Clean The Mating Surfaces Between The Brake Disc And The Inside Of The Wheel, Then Install The Front Wheels.
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