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Home >> Nissan-Datsun >> 1988 >> D21 Hardbody 4WD V6-2960cc 3.0L SOHC (VG30i) >> Repair and Diagnosis >> Brakes and Traction Control >> Disc Brake System >> Technical Service Bulletins >> All Technical Service Bulletins >> Brakes - Diagnostic Procedure For Brake Pull >> Brake Rotor and Pad Break-In Procedure

Brake Rotor and Pad Break-In Procedure

Step 3: Brake rotor and load break-in procedure - The factory applies a protective coating to the brake rotor to prevent corrosion during shipping. Before the coating wears off, it can cause brake pull or diminished performance. This coating normally wears off after about 50 normal stops.

New brake pad performance gradually increases during the break-in period. Peak performance is usually reached after about 50 normal stops, about the point that the protective coating wears off the rotors.

If the vehicle continues to pull after suspension and brake adjustments, perform the following procedure to break-in the pads and rotors:

1. Select a road with no interfering traffic. Perform 10 moderate brake stops from 55-0 mph. There may be a small amount of smoke from the front brakes on the later stops. This is normal. Large amounts of smoke means that the brake stops are too hard.

2. After the tenth stop, cool the brakes as follows:

^ Drive 15-20 miles at normal speed without stopping. OR
^ Park the vehicle for 2-3 hours.

3. Road test the vehicle again after the brakes have cooled. This procedure should remove the rotor coating and break-in the pads to allow peak performance.