Inspection Procedure 1: Abnormal Noise
INSPECTION PROCEDURE 1: Abnormal NoiseDIAGNOSIS
STEP 1. Check the rear hub assembly installation bolts for looseness.
Q: Are the rear hub assembly installation bolts loosened?
YES: Tighten the rear hub assembly installation bolts to the specified torque 95 ± 14 Nm (70 ± 10 ft-lb). Then go to Step 3.
NO: Go to Step 2.
STEP 2. Check the wheel bearing end play.
1) Remove the brake drum. [Vehicles with drum brake]
2) Remove the caliper assembly, and suspend the caliper assembly with a wire and remove the brake disc. [Vehicles with disc brake]
3) Check the bearing's end play. Place a dial gauge against the hub surface, then move the hub in the axial direction and check whether or not there is end play.
Limit: 0.05 mm (0.002 inch)
Q: Is the wheel bearing end play within the limit?
YES: Go to Step 3.
NO: Replace the rear hub assembly, then go to Step 4.
STEP 3. Check the rear hub rotary-sliding resistance.
1) Remove the brake drum. [Vehicles with drum brake]
2) Remove the caliper assembly, and suspend the caliper assembly with a wire and remove the brake disc. [Vehicles with disc brake]
3) Turn the hub a few times to seat the bearing.
4) Wind a rope around the hub bolt and turn the hub by pulling at a 90 degree angle with a spring balance. Measure to determine whether or not the rotary-sliding resistance of the rear hub is at the limit value.
Limit: 19.2 N (4.32 lb)
Q: Is the rear hub rotary-sliding resistance within the limit?
YES: Go to Step 4.
NO: Replace the rear hub assembly if an adjustment cannot be made to within the limit. Then go to Step 4.
STEP 4. Retest the systems.
Q: Are abnormal noises generated?
YES: Return to Step 1.
NO: The procedure is complete.