Riviera V6-3.8L SC VIN 1 (1995)
Brake Rotor/Disc: Technical Service Bulletins
Facts About Brake Service
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Original equipment rotor surfaces are ground to ensure smooth finish and parallelism between mounting and friction surfaces. New rotors should not
be resurfaced before installation.
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Improper tightening of wheel nuts can induce lateral runout (distortion of braking surfaces) which will lead to uneven wear. As high spots are worn
down, resulting thickness variation will cause brake pulsation.
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Ensure wheel bearing flange is clean and free of corrosion before installing new rotors. A new essential tool (Kent Moore tool J 42450) will soon be
sent to all dealers. This tool makes it easier to clean corrosion around the wheel studs.
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Always mark the position of rotor on the hub before removal, and reinstall the rotor in the same position.
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Rotors with perceived hard spots or discoloration should not be serviced. These conditions are normal.
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Installation of new rotors does not require pad replacement. Do NOT replace pads unless their condition requires it.
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It is NOT necessary to replace rotors in pairs. Rotors may be serviced individually.
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A TORQUE LIMITING SOCKET OR TORQUE WRENCH MUST BE USED to insure that the wheel nuts are tightened to specification. This
should be done in 3 steps using the star pattern.
1. Snug the nuts down by hand.
2. Using the star pattern and a torque limiting socket or torque wrench, tighten the wheel nuts to about half the final torque.
3. Tighten the wheel nuts to specification using the star pattern and a torque limiting socket or torque wrench.
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NEVER use lubricants or penetrating fluids on wheel studs, nuts, or mounting surfaces. Wheel nuts, studs, and mounting surfaces must be clean and
dry.
