Ford Ecosport: Wheels and Tires / General Procedures - Wheel to Hub Runout Minimization
Check
NOTE:
Wheel-to-hub optimization is important. Clearance between
the wheel and hub can be used to offset or neutralize the Road Force® or
run-out of the wheel and tire assembly. For every 0.001 inch of
wheel-to-hub clearance, the Road Force® can be affected between 1 and 3
pounds depending on the tire stiffness.
-
NOTE:
The example below illustrates how the clearance
between the wheel and the hub can be used to offset the high spot of
radial run-out or Road Force®. Following the procedure will make sure of
the best optimization.
Position the wheel and tire assembly on the vehicle so
that the high spot location of radial run-out or Road Force® is at the 6
o'clock position and install the wheel nuts by hand until snug.
-
NOTE:
Do not allow the full weight of the vehicle to rest on the tires while tightening the wheel nuts.
Lower the vehicle until the tires make contact with the
ground, slightly loading the suspension. Tighten the wheel nuts.
Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).
Preliminary Inspection
Verify the customer concern by carrying out a road test on a
smooth road. If any vibrations are apparent, Refer to the Symptom
Chart: NVH...
Check
NOTE:
Road Force® values in illustrations are shown in pounds.
NOTE:
Match mounting is a technique used to reduce radial runout
or road force on wheel and tire assemblies...
Other information:
Activation
NOTE:
Compressor with a spring rubber clutch shown others similar.
Check the A/C clutch air gap at 3 equally spaced places between the
clutch plate and the A/C clutch pulley. Refer to Specifications in Group
412.
Remove the A/C clutch...
Special Tool(s) /
General Equipment
Adhesive Tape
WARNING:
If the clockspring is not correctly centralized, it may fail
prematurely. If in doubt, repeat the centralizing procedure. Failure to
follow these instructions may increase the risk of serious personal
injury or death in a crash...