Tools Required
Important: Do NOT refinish the brake rotors in order to correct any of the following
complaints:
| • | Brake noise (growl/squeal) |
| • | Premature brake lining wear |
| • | Cosmetic or superficial corrosion of the rotor braking surface |
| • | Severe scoring of the rotor braking surface (groove depth in excess
of 1.5 mm (0.060 in) |
| • | Brake pulsation caused by the following: |
| - | Brake rotor thickness variation in excess of 0.025 mm (0.001 in) |
| - | Corrosion or pitting that is deeper than the rotor braking surface |
Notice: Whenever the brake rotor has been separated from the wheel bearing flange,
clean any rust or foreign material from the mating surface of the rotor and
flange with the J 42450 hub cleaning kit. Failure to do
this may result in increased lateral runout of the rotor and brake pulsation.
- Use the
J 42450-A
in
order to clean the wheel bearing/hub.
- Use a micrometer in order to measure the thinnest point of the
brake rotor. If the thinnest point of the brake rotor exceeds the brake rotor
minimum thickness, do NOT refinish the brake rotor. Replace the brake rotor.
- Use the
J 41013
in order to THOROUGHLY clean the rust from the brake rotor flange.
- Refinish the brake rotor. Refer to the brake lathe manufacturer's
operating instructions.
Important: Failure to obtain the best possible braking surface finish may cause
the vehicle to stop with difficulty.
- After machining the rotor, use 120 grit aluminum oxide sandpaper
and a non-directional rotor finisher (if available) in order to create a non-directional
braking surface.
- Clean the braking surfaces with denatured alcohol or with a suitable
brake cleaner.
Notice: Improperly tightened wheel bolts or nuts can lead to brake pulsation and rotor damage. In order to
avoid expensive brake repairs, evenly tighten the wheel bolts or nuts to the proper torque specification.
