Assembly - Datsun 610 Series 1973 Service Manual

I
TRANSMISSION
S
nchromesh
assembly
Model
F4W63 Transmission
1 Remove
spread
springs
I
and
take
out shifting
inserts
2
Separale coupling sleeve
CID
from
synchro hub @
Model
F4C63 Transmission
1 Remove cir
clip I
and then
synchro ring 2 brake
bands 3
thrusl block
4 and
anchor block
5
o
@ G
Cl
1
Spread spring
4 Synchro hub
2 Shifting insert
5
Baulk ring
3
Coupling
sleeve
@
Of
@
CD
I
I
CD
IllY
O
@
TM297
5
@
1
Cir
clip
2
Synchro ring
3
Brake band
4
Thrust block
5 Anchor block
6
Coupling
sleeve
7
Synchro
hub
8 Clutch
gear
Fig
TM 20 Exploded view of
synchromesh
Q S embly
Inspection
Wash clean all
parts in
an
ap
proved
solvent
and check for
wear or
damage
Transmission
case
and
rear
extension
housing
Wash
clean with
an
approved
solvenl
and check for
any
crack
which may be the
cause
of oil leak
Bearings
1
Wipe clean oil
or grease on
bearings
and dry these
parts
with
compressed
air
2 Check balls
outer
race
and
inner
race
for
wear
burr
or
damage Also
check
for smooth
operation
If
neces
sary
replace
TM067
Fig TM 21 Checking ball
bearing
3
Replace
needle
bearings
which
are
excessively
worn or damaged
4
Replace
rear
exlension bushing if
worn or
cracked
Gears and shafts
I Check gears for
wear
crack
or
damage
and if necessary
replace
2 Check shafts for
wear
crack
or
bending If necessary
replace
3 Check gears
for end
play
Standard end
play 1st
2nd
3rd
and
reverse
idler
gears
O OS
to
O
IS
mm
0 0020
to 0
ooS9 in
Fig TM 22 Mea8Uring
gear end
play
4 Measure backlash in
gears
Standard backlash O OS
10 0 14
mm
0 0020
to
0
ooS5
in
If Ihe backlash exceeds
Ihe
specified
value
replace
drive
and
driven
gears as a
set
TM 6
TM257
Fig
TM 23
Measuring
gear backlash
Baulk
rings
I
Replace
any
baulk
ring
which is
deformed
01
cracked
2 Posilion baulk
ring
in place
on
gear cone
and
measure
the baulk
ring
to gear
clearance with baulk
ring
pushed
toward gear
If
the clearance
is
srnalIer Ihan
the
specified
value
replace
baulk
ring
TM258
Fig
TM 24 Baulk
ring
to
cone gap
Oil seal
It is advisable not to
reuse
oil seals
that have been removed
Always
instaII
new
oil seals If
spring
used in
any oil
seal
is dislocated
01
if seal
lip
is
folded
replace
thai oil seal
Assembly
Front
cover
L Make
sure
Ihat
seal mating
surface is clean
Using
a
press
drive
new
seal into
place
on
front
cover
2 Lubricate seal
lip
wilh gear oil
when
inslalIing
oil seal