Subaru 1600 Service Manual page 409

NOTE:
Oozing out of oil is normal, and there
is no necessity for replacing oil seal.
b. Piston rod
Replace it with new damper strut if
defective.
(1) If leaked oil spreads to near spring
seat, check piston rod carefully for
damage, uneven wear and bend.
NOTE:
Since slight scratch can cause oil leak,
check piston rod as carefully as pos-
sible.
(2) Measure bend and wear as shown.
1 Dial gauge Bend Measuring
2 Piston rod
3 V-block
Wear Measuring
1 Piston rod
2 Micro meter
A15·090
Fig. 9-20 Measuring piston rod
Bend limit
0.05 mm
(0.0020 in)
0.02mm
Wear limit
(0.0008 in)
Specified
"TOKICO"
outer diameter 19.94 - 19.98 mm
(0.7850 - 0.7866 in)
"KYB"
19.935 - 19.981 mm
(0.7848 - 0.7867 in)
"SHOWA"
19.98 - 20.01 mm
(0.7866 - 0.7878 in)
SUSPENSION, WHEELS AND AXLES
(3) Check piston rod-to-outer shell
total clearance as shown.
~~~~t
-
:1g~;:::3
(
10 mm 10.39 in)
2 kg,
41b)
A15·091
Fig. 9-21 Measuring clearance
Clamp outer shell, and pull out piston
rod to its maximum stroke. Set dial
gauge, and apply 20 N (2 kg, 41b) of
force upwards and downwards at its
free end through spring balance, and
read dial gauge.
Indication of
dial gauge
c. Inner cylinder
0.8 mm or less
(0.031 in)
Replace it with new damper strut
if defective.
(1)
Check for wear and damage on
inner surface and for bend.
(2) Measure wear and bend as shown.
1 Dial gauge
2 Inner cylinder
Fig. 9-22 Measuring of bend
1 Cylinder gauge
2 Cylinder
A15·092
A15·093
Fig.9-23 Measuring bore of cylinder
9-14
Bend limit
0.2mm
(0.008 in)
Wear limit
0.1 mm
(0.004 in)
Specified "TOKICO"
inner diameter 30.05 - 30.15 mm
(U831 - 1.1870 in)
"KYB"
30.20 - 30.28 mm
(1.1890 - 1.1921 in)
"SHOW A"
30.0 - 30.052 mm
(1.1811 - 1.1831 in)
d. Outer shell
Replace it with new damper strut if
defective.
(I) Distortion, crack and damage.
(2) Oil leakage around welded portion
at its lower end.
2) Strut mount
1) Check rubber part for creep, crack •
and deterioration, and replace it with
new one if defective.
2) If distortion is found on its con-
necting surface to body, replace it
with new one.
3) Thrust washer
1) Check for wear, distortion, dam-
age etc., and replace it with new one if
defective.
2) If any scratch is found on sliding
surface, replace it along with washer
with new pair.
4) Oil seal
Check the lip of oil seal for wear,
damage and deterioration, and replace
it with new one if defective.
5) Dust cover
If any crack or damage is found,
replace it with new one.
6) . Coil spring
One having permanent strain should
be replaced with new one. When
vehicle posture is uneven although
there is not considerable reasons like
tyre puncture, uneven loading etc.,
check coil springs for its free length,
crack etc., with referring to specifica-
tions.