OEM Cadillac Catera Brake Disc

Cadillac Catera Brake Disc Parts and Q&A

• Rotor
  9195052
  Q: How to replace the front brake disc on Cadillac Catera?

  A:

  To replace the front brake rotor, first, lift and support the vehicle, next, take off the tire and wheel. Take care because if brake fluid in the caliper becomes overheated; avoid cramming the contaminated fluid back into the brake system. Open bleeder screw and secure a tube to the catch container for the brake fluid. Compress Piston into the caliper housing bore to obtain clearance between linings and rotor. Do not bolt back, discard the caliper bracket bolts without twisting or crimping the brake hose or the Brake Pad wear sensor wire. Unscrew the caliper and bracket together using mechanic wire to hold them in position, then unscrew the brake rotor set screw and pull the brake rotor. Clean off any rust or other foreign objects from both the mating surface of the axle flange as well as the brake rotor to prevent increased lateral run out operation and brake pulsation. Follow the caliper bracket mounting threads in the Steering Knuckle to clear that the threads have no leftover locking compound then install the new brake rotor and then the brake rotor set screw, tightening it to 4 nm (35 inch lbs.). Mount the caliper and bracket to the Steering Knuckle with a new caliper bracket bolts coated with 272 threadlocker, gm p/n 12345493 or equivalent before installation and tighten to 95 nm (70 ft. Lbs.) first pass and 37 degrees second pass. Replace the tire and wheel, put the vehicle down, and fill the master cylinder reservoir. New braking surfaces need to be broken in or burnished upon mounting brake pads or refinishing rotors; avoid overheating the brakes. Lastly, make 20 stops from 48 km/h (30 mph) with medium to firm brake pedal pressure in order to burnish brake rotors.
• Rotor
  93182292
  Q: Under What Conditions Should Brake Discs Be Refinished on Cadillac Catera?

  A:

  Brake rotor refinishing must be performed only in particular situations which include brake surface scoring beyond 1.5 mm (0.060 inches) or when rotor thickness variation reaches 0.025 mm (0.001 inches) or when corrosion affects areas deeper than the braking surface. The approved brake lathes for servicing include accu turn (R) off-vehicle and pro-cut (R) that operates on the vehicle. Hubs need the j 42450-a hub cleaning kit together with the j 41013 rotor resurfacing tool kit for tool requirements. During brake rotor separation from wheel bearing flange it is crucial to employ the j 42450-a for cleaning rust as well as any extraneous material from mating surfaces. The first step involves cleaning the wheel bearing/hub with j 42450-a followed by measuring the thinnest rotor brake point with a micrometer. Refinishing the rotor should only occur if the measurement exceeds the minimum specification; otherwise replace the rotor next to refinishing. Adopt the j 41013 rotor resurfacing kit for complete rust removal from brake rotor flanges before executing rotor refinishing by following manufacturer protocols. Apply 120 grit aluminum oxide sandpaper to produce a non-directional surface on the braking area while using a non-directional rotor finisher if available followed by cleaning with denatured alcohol or suitable brake cleaner. Proper brake performance depends on steering wheel nut torque uniformity when it reaches the designated specification. The process of burnishing new braking surfaces requires the driver to make 20 stops beginning at 48 km/h (30 mph) using medium to firm pressure on the brake pedal and staying away from overheating the brakes.