Toyota Tercel 1985 Repair Manual page 538

RA.30
REAR AXLE AND SUSPENSION - Differential {4WD)
REMOVAL OF DIFFERENTIAL
(See page RA-28)
1. DRAIN DIFFERENTIAL OIL
2.
REMOVE REAR AXLE SHAFT (See page RA-25)
3. DISCONNECT PROPELLER SHAFT FROM
DIFFERENTIAL (See page RA-28)
4. REMOVE DIFFERENTIAL CARRIER ASSEMBLY
DISASSEMBLY OF DIFFERENTIAL
(See page RA-281
NOTE: lf the differential is noisy, perform the following
pre-inspection before disassembly to determine the cause.
lf the differential has severe problems, disassemble and
repair as necessary.
1 . C H E C K R I N G G E A R R U N O U T
Maximum runout: 0.07 mm (O.OO28 in.l
lf the runout is exceeds maximum, replace the ring gear.
2. CHECK RING GEAR BACKLASH
Backlash: 0.10 - 0.15 mm (O.OO39 - O.OO59 in.)
lf the backlash is not within specification, adjust the side
bearing preload or repair as necessary. (See step 5 on
page RA-36)
3, INSPECT TOOTH CONTACT BETWEEN RING GEAR
AND DRIVE PINION (See step 6 on page RA-38)
Note the tooth contacting position.
4. CHECK SIDE GEAR BACKLASH
Measure the side gear backlash while holding one pinion
gear toward the case.
Standard backlash:
O.OZ - 0.15 mm (0.0008 - 0.0059 in.)
lf the backlash is not within specification, install the cor-
rect thrust washers.
5.
CHECK DRIVE PINION PRELOAD
Using a torque wrench, measure the preload of the back-
lash between the drive pinion and ring gear.
P r e l o a d : 4 - 7 k g - c m
{3.5 - 6.1 in.-lb, 0.4 - O.7 N'm}
6.
CHECK TOTAL PRELOAD
Using a torque wrench, measure the total preload.
Total preload:
In addition to drive pinion preload
2 - 4 kg-cm $.7 ' 3.5 in.-lb, O.2 - O.4 N'm)