Step 3

Step 3: If new front brake rotors are not available, inspect, and if possible resurface the existing rotors.

A. Remove both front brake caliper assemblies.

Refer to section BR in the ESM for brake caliper assembly removal.





B. Measure the thickness of both front rotors to make sure they can be reused / resurfacing is possible.

^ If the thickness of both rotors is 25.5 mm (1.0 in) or more go to C below.

^ If the thickness of one or both rotors is less than 25.5 mm (1.0 in) the rotors are not thick enough to be resurfaced.

C. Resurface the rotors using the Pro-Cut(TM) on-car brake lathe.

Rotor thickness must be at least 24.5 mm (0.965 in.) after rotor resurfacing.

D. Check the front rotor runout with the road wheels mounted on the vehicle as follows:

1. Make sure each brake caliper assembly is placed out of the way of the rotor wheel and tire. Make sure they are secure so they won't fall while you're working on the vehicle.

2. Make sure the rotors are fully contacting the hubs. Check the rotor-to-hub surfaces. Clean off all rust dirt or other debris.

NOTE:
For cleaning the hub surface specifically around the wheel studs it is recommended to use the Wheel Hub Cleaning Kit # J-42450-A which can be ordered from Nissan TECH-MATE.

3. Install the front wheels and tires on the vehicle.

^ Tighten lug nuts to 133 Nm (14 kg.m, 98 ft.lb) with a Torque Wrench.

^ Do Not tighten the wheel lug nuts with an air impact wrench.

^ If you apply uneven or high torque to the lugs it may distort (warp) the brake rotor and hub. This could cause increased rotor runout.

4. Mount a dial indicator so it contacts the rotor in the area where the brake caliper mounts as shown in Figure 1c.

Maximum runout when checking in this manner: 0.05 mm (0.002 in)

^ If runout is 0.05 mm (0.002 in) or less remove the wheel and tire and go to Step 4 (Clean and Inspect the Cylinder Body).

Runout must not be more than 0.05 mm (0.002 in)

Front Brake Rotor Resurfacing

^ You must use the Pro-Cut (TM) PFM Series On-Car Brake Lathe.

^ The Pro-Cut(TM) PFM Series On-Car Brake Lathe is an Essential Tool and can be ordered from Nissan TECH-MATE.

IMPORTANT NOTES:

^ The on-car brake lathe is more effective in reducing brake rotor runout than the conventional off-car lathe method.

^ While using the on-car brake lathe place a jack or jack stand under the front cross member to stabilize the vehicle as shown in Figure C.

^ Stabilizing the vehicle will prevent vehicle wobble that may affect the final rotor runout.

^ Each line on the cut-depth knob moves the cutting tip 0.002 (0.05 mm).

> For the best surface finish and the longest tip life, cut 0.004 in (0.1 mm) on each side with each pass.

> Do Not make cuts of less then 0.004 in (0.1 mm) per side unless absolutely necessary.

> Rotate cutting tips after 7 cuts. Mark the tips so you can tell which tips have been used.

Replace the entire bit after all 3 tips (corners) have been used (total of 21 cuts).

> See the Pro-Cut(TM) operation manual for additional information.

^ When using the on-car brake lathe you must prevent metal shavings from contacting or collecting on the ABS speed sensors.

^ Remove any shavings that stick to the ABS speed sensor's magnet. It is best to clean the ABS sensor with the rotor removed.

^ If the rotor must be removed for any reason mark the exact location (rotor to axle hub) before removing the rotor (see Figure A). The rotor must be reinstalled back to the same location.

^ Do not tighten the wheel lug nuts with an air impact driver. Uneven or high torque applied to the lugs may distort (warp) the brake rotor and hub. This may result in increased rotor runout and excessive rotor thickness variation as the rotor wears.

^ Always use a torque wrench to tighten the wheel lug nuts to the proper torque specification.