Tools Required
J 8001 Dial Indicator Set,
or equivalent
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Mark the location of the wheels to the wheel studs and mark the specific
vehicle position on each tire and wheel - LF, LR, RF, RR.
- Remove the tire and wheel assemblies from the vehicle. Refer to
Tire and Wheel Removal and Installation
in Tires and
Wheels.
- Remove the brake rotors from the vehicle. Clean the mounting surfaces
of the brake rotors and the hub/axle flanges of any loose debris, rust, and corrosion.
Refer to
Front Brake Rotor Replacement
and
Rear Brake Rotor Replacement
in Disc Brakes.
- Position the J 8001
, or equivalent, on the machined surface of the wheel hub/axle flange
outside of the wheel studs.
- Rotate the hub one complete revolution in order to find the low spot.
- Set the J 8001
, or equivalent,
to zero at the low spot.
- Rotate the hub one more complete revolution and measure the total amount
of wheel hub/axle flange runout.
Specification - Guideline
Front Wheel hub/axle flange runout tolerance guideline: 0.025 mm (0.0009 in).
Rear Wheel hub/axle flange runout tolerance guideline: 0.06 mm (0.0023 in).
- If the runout of the wheel hub/axle flange IS within specification, proceed
to step 12.
- If the runout of the wheel hub/axle flange is marginal, the wheel hub
may or may not be the source of the disturbance.
- If the runout of the wheel hub/axle flange is excessive, replace the
wheel hub/axle flange. Measure the runout of the new wheel hub/axle flange. Refer
to the appropriate procedure:
- Position
the J 8001
, or equivalent, in order
to contact the wheel mounting studs.
Measure the stud runout as close to the flange as possible.
- Turn the hub one complete revolution to register on each of the wheel
studs.
- Zero the J 8001
, or
equivalent, on the lowest stud.
- Rotate the hub one more complete revolution and measure the total amount
of wheel stud - stud circle - runout.
Specification - Guideline
Wheel stud runout tolerance guideline: 0.254 mm (0.010 in)
- If the runout of the wheel studs - stud circle - is marginal,
the wheel studs may or may not be contributing to the disturbance.
- If the runout of the wheel studs - stud circle - is excessive,
replace the wheel studs as necessary. Measure the runout of the new wheel studs. Refer
to the appropriate procedure: