Datsun 1968-1973 510 Owners Workshop Manual page 91

90
Chapter
S Clutch
FIG 58 CLUTCH
BELLHOUSING SHOWING DETAIL PARTS
FIg
57 Clutch cantrahSBtlon tool
See 51
OF
WITHDRAWAL LEVER SEC 71
1
To
gam access
It IS necessary to remove
the
gearbox as
described
In
Chapter 6
2 Remove
the dust
cover
from the clutch hOUSIng
3 Detach and
remove
the clutch release lever
from the clutch
houSing
4 Release the
retamer spnng
Clip
from the WIthdrawal lever
5 Remove
the release
bearing bearing
sleeve
and holder
spring
from the clutch housmg
as one
complete assembly
6 Check the bearmg for sIgns of overheatIng
w r or
roughness
WhICh
If
evIdent
the old
bearing should be drawn off the
bearing
sleeve uSing
a
unlvef1a1
two
leg puller Note
WhlCh
way
d the
bearing IS
fItted
pIpe
was
dIsconnected and check the
clutch for
correct
oper
ation
6
Clull
h
Inspection
1 In the
normal course
of
eventS
clutch d smanthng and
re
assembly
IS
the term
used for sImply
flttln9
a new
clutch
pressure
plate
and frictIon dISC Under
no
circumstances
should
the
pressure
plate assembly
be
dIsmantled If
a
fault develops
In
the assembly
an
exchange replacement
Unit must
be fItted
2
If
a new
clutch dISC
IS
bemg fItted
It IS
false economy
not to
renew
the release bearing
at
the
same tIme
ThIS
will preclude
havIng to replace It at
a
later date when
wear on
the clutch
hnlngs
IS
very small
3 Examme the clutch dISC frictIon IIn
ngs
for
wear or
loose
rivets
and the diSC for
nm
dIstortion cracks and
worn
splmes
4 It
IS
always
belt
to renew
the
clutch driven
plate
as an
assembly
to preclude
further trouble but If
It
IS
WIShed
to
merely
renew
the
IInmgs
the rivets
should
be
drilled
out
and
not
knocked
out
WIth
a centre
punch The manufacturers do not
advIse
that
the
linings only
are
renewed and penonal
experience
dICtates
that
It
IS
far
more
satISfactOry
to renew
the driven plate
complete
than
to
try
to econom se by flttmg only new
frictIOn
linings
5
Check the machmed faces of the flywheel and the pressure
plate If either
IS
badly grooved
It
should be machmed
until
smooth
or
replaced
WIth
a new
Item
If the pressure plate
IS
cracked
Dr
split
It
must be
renewed
6 Examme the
hub sphnes
for
wear
and make
sure
that the
centre
hub
IS
not
loose
7
Clutch
rel
bearing
removal
and
replacement
1
Withdrawal lever ball
pm
2
Withdrawallever
3 Return
spring
4
Release bearmg
FIg59 USing un v 1 puller
to remove
r
l
bearing from
car
rler
See 7
I
Fig
5 10 LocatIOn for grease
In
release
bearing
carner
See
71
c
c