X-90 (4WD) L4-1591cc 1.6L SOHC MFI (1998)
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Wheel Hub: Description and Operation
Automatic Free Wheeling Hub
OPERATION
An automatic free wheeling hub is equipped in the right and left front wheel hubs in similar manner to that of the manual type.
When the car equipped with these automatic free wheeling hubs is started out with the gear shift lever shifted from 2H to 4H or 4L, the drive
power as shown in the diagram is transmitted to the hub, slide gear and cam. The cam lobe then disengages from the retainer slot and rides on the
retainer lobe. As a result, the cam shifts the slide gear to the right as shown in the figure. This shift causes the slide gear to mesh with gear at inner
side of free wheeling hub body installed on the drive axle housing resulting in automatically creating 4WD with axle shaft drive power being
transmitted to wheel hub (wheel).
