Datsun 620 Series 1977 Service Manual page 254

Malnshaft
assembly
Same
as
for the F4W7IB
Countershaft
assembly
Same
as
for the F4W71 B
Main drive
gear
assembly
Procedures
are
the
same as
for the
F4W7IB
trans
i
n except as
follows
I Insert countershaft and mainshaft
into
adapter plate and place adapter
plate in
a
vise
with
setting
plate
Manual Transmission
Synchro
ring
8andbrake
Circlip
Anchor block
TM449
Fig MT 70 Imtalling overdrive gear
assembly
Install
snap
ring
spacer
needle
roller
bearing
reverse
idler gear spacer
and
snap
ring
h
I
L
TM4S1
Fig MT 71 R
lJerse
idler gear
MT 20
2
Assemble OD
reverse synchro
nizer
assembly OD
gear
bushing
needle bearing OD
gear
assembly
sreel ball and thrust washer
on
main
shaft
rear
side Before
installing
steel
ball
apply
grease
to
it
3
Install
new
mainshaft
nut
and
tighten
it
temporarily
4 Install
counter
reverse
gear
counter
5 th
gear
bearing and
new
countershaft
nut
Tighten
nut tem
porarily
5
Tighten mainshafl and
counter
shaft nuts
and stake
nuts at
groove
in
shafts with
a
punch
Tightening
proce
dures
for mainshaft
nut
are
the
same
as
those for the F4W7IB
Shift forks and fork
rods
assembly
Same
as
for the F4W71 B
u
TRANSMISSION ASSEMBLY
Same
as
for the F4W71 B
INSTALLATION
Same
as
for the F4W71 B