Clutch Disc Facing Surface Condition
A burnt or glazed (glass-like surface) facing can
be reconditioned by grinding it with No. 120
-
200 sandpaper. If surface is in bad condition
beyond repair, replace whole clutch disc assemb-
ly.
11-3. INSPECTION OF COMPONENTS
Backlash in Disc
Setration
Fit
Check backlash by turning disc back and forth
as mounted on transmission input shaft. Replace
disc assembly if backlash is noted to exceed
service limit. Backlash here is a circular displace-
ment as measured with a dial indicator.
Fig. 1 l-6
@
Sandpaper
Clutch Facing Wear
Check wear of facing by measuring depth of
each rivet head depression, i.e. distance between
rivet head and facing surface. If depressing is
found to have reached service limit at any of the
holes, replace clutch disc assembly.
Rivet head
depression
Standard
1.2mm
(0.05
in.)
Service limit
0.5
mm
(0.02
in.)
Backlash in serration fit
Service limit
0.8
mm (0.03 in.)
Fig. 11-8
Clutch Cover
Inspect clutch cover for evidence of diaphragm
spring rivets getting loose. If rivets are loose
or are getting loose, replace cover assembly as
such cover makes rattling noise when clutch
pedal is depressed.
Inspect tips of tapering fingers (to which the
release bearing exerts a push to disengage clutch)
for wear. If tips are worn excessively, replace
cover assembly.
Fig. 1
l-7
Fig. 1
l-9
@ Spring wear; @ Rivet
11-5
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