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Home >> Nissan-Datsun >> 1990 >> D21 Hardbody 2WD V6-2960cc 3.0L SOHC MFI (VG30E) >> Repair and Diagnosis >> Brakes and Traction Control >> Disc Brake System >> Brake Caliper >> Testing and Inspection >> Brake Drag Inspection

Brake Drag Inspection

Brake Drag Inspection:




1. Swing caliper body upward.
2. Make sure that wheel bearing is adjusted properly.
3. Measure rotating force (F1).

Brake Drag Inspection:




4. Install caliper with pads to the original position.
5. Depress brake pedal for 5 seconds.
6. Release brake pedal, rotate disc rotor 10 revolutions.
7. Measure rotating force (F2).
Calculate brake drag force by subtracting F1 from F2.

Maximum brake drag force (F1-F2): 103.0 N, 10.5 kg, (23.2 lb)

Caliper Inspection:




NOTE: If it is not within specification:
^ check pins and pin boots in the caliper.
^ Make sure that wheel bearings are adjusted properly.
^ Disc pads and disc rotors must be dried.