Install the differential carrier assembly (A) with the
special tools (09517-43401 & 09517-43500).Then carry out the
following inspection.
1.
Check the final drive gear backlash by the following procedure.
(1)
Place the drive pinion and move the drive gear to check backlash is within the standard range.
Measure at 4 points on the gear periphery.
Standard value :
0.10 ~ 0.15mm (0.0039 ~ 0.0059in.)
2.
Check the drive gear back-face lash by the following procedure.
(1)
Place a dial gauge on the back-face of the drive gear and measure the runout.
Limit : 0.05 mm (0.002 in)
(2)
If the runout is beyond the limit, check that there are no
foreign substances between the drive gear and differential case and,
that the bolts fixing the drive gear are not loose.
3.
Check the differential gear backlash by the following procedure.
(1)
Fix the side gear with a wedge so it cannot move and measure
the differential gear backlash with a dial indicator on the pinion gear.
Standard value :
0 ~ 0.05 mm (0 ~ 0.002 in)
Take the measurements at two places on the pinion gear.
(2)
If the backlash exceeds the limit, adjust using side bearing spacers.
If adjustment is impossible, replace the side gear and pinion gear as a set.
4.
Check the tooth contact of the final drive gear by the following procedure.
(1)
Apply the same amount of machine blue slightly to both surfaces of the drive gear teeth.
(2)
Insert a brass rod between the differential carrier and the
differential case, and then rotate the companion flange by hand (once in
the normal direction, and then once in the reverse direction) while
applying a load to the drive gear so that some torque (approximately
25~30Nm) is applied to the drive pinion.
If the drive gear is rotated too much, the tooth contact pattern will become unclear and difficult to check.
(3)
Check the tooth contact pattern.
Tooth contact
Contact state
Solution
Standard contact
1. Heal contact
Increase
the thickness of the pinion height adjusting shim, and position the
drive pinion closer to the center of the drive gear.
Also, for backlash adjustment, reposition the drive gear further from the drive pinion.
2. Face contact
3. Toe contact
Decrease
the thickness of the pinion height adjusting shim, and position the
drive pinion further from the center of the drive gear.
Also, for backlash adjustment, reposition the drive gear closer to the drive pinion.
4. Flank contact
•
Tooth contact pattern is a method for judging the result of
the adjustment of drive pinion height and final drive gear backlash. The
adjustment of drive pinion height and final drive gear backlash should
be repeated until the tooth contact patterns are similar to the standard
tooth contact pattern.
•
When you cannot obtain a correct pattern, the drive gear and
drive pinion have exceeded their limits. Both gears should be replaced
as a set.
5.
Check the oil leaks and the lip part for chew or wear.
6.
Check the bearings for wear or discoloration.
7.
Check the gear carrier for cracks.
8.
Check the drive pinion and drive gear for wear or cracks.
9.
Check the side gears, pinion gears and pinion shaft for wear or damage.
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Kia Sportage: Rear Differential Carrier: Repair procedures
Rear Differential Carrier: Components and Components Location