Crossfire V6-3.2L VIN L (2004)
Brake Rotor/Disc: Testing and Inspection
DISC BRAKE ROTORS
REAR ROTOR MINIMUM THICKNESS
Minimum usable thickness of the rear disc brake rotor is 0.299 inch (7.6 mm). The thickness specification is located on the center section of the rotor.
Never resurface a rotor if at minimum thickness. Machining the rotor would cause the thickness to fall below the limit.
Measure rotor (2) thickness at the center of the brake shoe contact surface using a micrometer (1). Replace the rotor if worn below minimum
thickness, or if refinishing would reduce thickness below the allowable minimum.
REAR ROTOR THICKNESS VARIATION
Variations in rotor thickness will cause pedal pulsation, noise and shudder.
Measure rotor thickness at a minimum of six points around the rotor face. Position the micrometer approximately 3/4 inch (19 mm)from the rotor
outer circumference for each measurement.
Thickness should not vary by more than 0.0005 inch (0.0127 mm) from point to point on the rotor. Refinish or replace the rotor if necessary.
REAR ROTOR LATERAL RUNOUT
Check rotor lateral runout whenever diagnosis indicates pedal pulsation and rapid, uneven brake lining wear.
The rotor must be securely clamped to the hub to ensure an accurate runout measurement. Secure the rotor with the wheel nuts and 4 or 5 large
diameter flat washers on each stud.
Use a dial indicator (1) to check rotor lateral runout. Maximum allowable lateral runout is 0.76 mm (0.003 inch).
FRONT ROTOR MINIMUM THICKNESS
Rotor minimum thickness is 0.889 inch (22.6 mm). Do not resurface a rotor if at minimum thickness. Machining would cause thickness to fall below
this limit.
Measure rotor thickness at the center of the brake shoe contact surface. Replace the rotor if worn below the minimum thickness, or if refinishing would
