Subaru XT 1988 Service Manual page 790

SUSPENSION
4-1
Front Ball Joint
L4·854
Fig. 49
REMOVAL
1) Jack up the front part of the veh icle, and remove the
wheels.
2) Pull out the cotter pin from the ball stud, remove the
castle nut, and remove the ball stud from the transverse link.
3) Remove the bolt securing the ball joint to the housing.
4) Remove the ball joint from the housing.
INSPECTION
1) Measure play ti of ball joint by the following procedures.
Replace with a new one when the play exceeds the specified
value.
(1)
With 686 N (70 kg, 154 Ib) loaded in the direction
shown in the figure, measure dimension Q,.
L4·780
Fig. 50
Fig. 51
(3) Calculate play
[j
from the following formula.
[j
= Q
2 -
Q,
L4·781
(4) When play ti is larger than the following figure,
replace with a new one.
FRONT BALL JOINT
Specified play for replacement:
[j
More than 0.3 mm (0.012 in)
2) When play ti is smaller than the specified value, visually
inspect the dust seal.
3) If the dust seal is damaged, remove it and wipe off any
deteriorated grease with a clean cloth.
4) Next, replace with an appropriate quantity of specified
grease (SUNLIGHT 2; PIN 003602010). about 3 g (0.11 oz),
then mount a new dust seal.
INSTALLATION
1) Install ball joint onto housing.
Torque (Bolt):
38 - 50 N'm (3.9 - 5.1 kg-m, 28 - 37 ft-Ib)
a. The ball joint and boot that have been removed must be
checked for wear, damage or cracks, and any defective part
must be replaced.
b. Do not apply grease to tapered portion of ball stud.
2) Connect ball joint to transverse link.
Torque (Castle nut):
39 N·m (4.0 kg-m, 29 ft-Ib)
3) Retighten castle nut further within 60
0
until a slot in
castle nut is aligned with the hole in ball stud end, then insert
(2) With 686 N (70 kg, 154 Ib) loaded in the direction new cotter pin and bend it around castle nut.
shown in the figure, measure dimension
Q2.
4) Install front wheels, and lower vehicle.
33