Chevrolet Sonic Repair Manual: Tire and Wheel Assembly Runout Measurement - On-Vehicle
- Raise and support the vehicle.
- Closely inspect each tire for proper and even bead seating.
- If any of the tire beads were not properly or evenly seated, reseat the
tire bead, then proceed to step 4. Refer to Tire and Wheel Removal and Installation.
- Wrap the circumference of each tire with tape (1) in the center tread area.
Wrapping the tread with tape allows for a smooth and accurate reading of
radial runout to be obtained.
- Position the dial indicator on the taped portion of the tire tread such
that the dial indicator is perpendicular to the tire tread surface.
- Slowly rotate the tire and wheel assembly one complete revolution in order
to find the low spot.
- Set the dial indicator to zero at the low spot.
- Slowly rotate the tire and wheel assembly one more complete revolution and
measure the total amount of radial runout.
Specification
Maximum tire and wheel assembly radial runout – measured on-vehicle: 1.52 mm
(0.060 in)
- Position the dial indicator on a smooth portion of the tire sidewall, as
close to the tread as possible, such that the dial indicator is perpendicular
to the tire sidewall surface.
- Slowly rotate the tire and wheel assembly one complete revolution in order
to find the low spot. Ignore any jumps or dips due to sidewall splices.
- Set the dial indicator to zero at the low spot.
- Slowly rotate the tire and wheel assembly one more complete revolution and
measure the total amount of lateral runout. Ignore any jumps or dips due to
sidewall splices and attain an average runout measurement.
Specification
Maximum tire and wheel assembly lateral runout – measured on-vehicle: 1.52 mm
(0.060 in)
- Repeat steps 4 through 12 until all of the tire and wheel assembly radial
and lateral runout measurements have been taken.
- Lower the vehicle.
Raise and support the vehicle.
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 ...
Note: After remounting a tire and wheel assembly to a hub/axle flange,
remeasure the tire and wheel assembly on-vehicle runout in order to verify that
the amount of runout has been reduced an ...
Other materials:
If Steam Is Coming from the Engine Compartment
Warning
Steam from an overheated engine can burn you badly, even if you just open
the hood. Stay away from the engine if you see or hear steam coming from it. Just
turn it off and get everyone away from the vehicle until it cools down. Wait until
there is no sign of steam or coolant before yo ...
Driver or Passenger Seat Back Cover and Pad Replacement
Driver or Passenger Seat Back Cover and Pad Replacement
Callout
Component Name
Warning: Refer to SIR Warning.
Warning: Do not repair or replace the seat stitching or seams
in the seat back trim cover with an ...
Torque Converter Housing with Fluid Pump Assembly Installation (6T30)
Torque Converter Housing with Fluid Pump Assembly Installation
Callout
Component Name
1
Fluid Pump Seal Assembly
2
Torque Converter Housing Gasket
3
Torque Converte ...
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