Wheel Bearings

ADJUSTMENT

1993–94 323, MX3 and Protege

1. Raise and support the vehicle safely. Remove the tire and wheel assembly.
2. Remove and properly support the caliper assembly.
3. Position a dial indicator gauge against the dust cap. Push and pull the disc brake rotor or brake drum in and out in the axial direction and measure the end-play of the wheel bearing.
4. Endplay should not exceed 0.002 in. (0.05mm).
5. If end-play is excessive, check the hub nut torque or replace the bearing.

1995–97 Millenia and Protege

1. Raise and support the vehicle safely. Remove the wheel assembly.
2. Remove and properly support the caliper assembly.
3. Remove the disc plate.
4. Position a dial indicator gauge against the wheel hub. Push and pull on the hub in the axial direction and measure the end-play of the wheel bearing.
5. Endplay should not exceed 0.002 in. (0.05mm).
6. If end-play is excessive, check the hub nut torque or replace the bearing.
7. Install the disc, caliper, and wheel.

1994–95 MX3, 1995 RX7, 1993–97 626 and MX6

1. Raise and support the vehicle safely. Remove the tire and wheel assembly.
2. Remove and properly support the caliper assembly.
3. Position a dial indicator gauge against the dust cap. Push and pull the disc brake rotor or brake drum in and out in the axial direction and measure the end-play of the wheel bearing.
4. Endplay should not exceed 0.002 in. (0.05 mm) on all other vehicles.
5. If end-play is excessive, check the hub nut torque or replace the bearing.

1993–95 929 and 1993–97 Miata

The wheel bearings on these vehicles are not adjustable. To check if the bearing requires service, remove the wheel and tire assembly, brake caliper and disc brake rotor. Install a dial indicator with the indicator foot resting on the wheel hub. Try to move the hub in and out. If there is more than 0.002 in. (0.05mm) bearing play, check the wheel hub nut torque or replace the hub and bearing assembly.