Datsun 180B Service Manual page 54

Engine
Mechanical
5
Install
rocker
arms
by
pressmg
valve spnngs down
with
a
screwdnver
6 Install valve rocker spnngs
7
After assembling cylinder head
turn
camshaft until
No I
piston IS
at
T
D C
on
Jts
compressIOn stroke
EM155
FIg EM 83 Assembling cylinder
head
PISTON AND
CONNECTING ROD
Assemble
pistons pISton
pms and
connectmg
rods
on
the
deSIgnated
cyhnder
EM156
Fig EM 84 Instal lng
pISton
pin
EM157
Fig EM 85 Assembling pISton and
connecting
rod
Notes
a
Piston is
pressed
into
connecting
rod wrth
fittmg
force of0
5 to
1
5
tons
aid of
PISton
Pin Press
Stand ST 1303000 lis
necessary
When
pressing piston
pm mto con
nectmg
rod
apply
engIne oil
to
pm
and small end of
connectmg
rod
b
Arrange
so
that 011
Jet
of connect
1ng
rod
big
end
is
duected toward
nght Side
of
cyhnder
block
c
Be
sure
to
mstall
pISton
in
cyhnders
with notch mark of
piston
head
toward front of engme
2 Install
piston
nngs
Install
top
and second
nngs m
nght
position
with marked Side
up
Notes
a
Top
nng
IS
chromIUm
plated
on
Imer
contactmg
face
b Second rIng has
larger
taper surface
than
top
ring
c
In the combmed 011
ristg
upper
rail
IS
the
same as
lower
one
1
0
EM158
Fig
EM 86 Instal mc plsfon nngs
3
FIX
beanngs
on connectmg
rod
and
connectmg
rod cap
Note Clean back SIde of
bearing
care
fully
ENGINE ASSEMBLY
The first
step
m
engme
assembly
IS
to
bolt
Engme
Attachment
ST05260001
to
right
hand SIde of
cyhnder
block
Next mstall block
on
another
Engme
Stand ST050lS000
WJth engme
bottom
up
2
Set
mam
beanngs
at the proper
portion
of
cyhnder
block
Rear
Front
III fi
m
Ii L
DDDDD
waa
65 N4
63
62 61
EM159
FIg
EM 87 Mam
bearmgs
EM 21
3 Install baffle plate mcludmg cyl
mder block
net
Notes
a
Only
center
bearIng
No 3 is
a
flanged
type
b All
mter beanngs
No
2 and
No
4
are
the
same
type
c
Front bearIng No
1 is also the
same
type
as rear
bearing No
5
The dIfference
IS
that
an
011 hole is
proVided
m
the
front
bearing
d All upper and lower
bearIngs
are
mterchangeable
4
Apply
engme
all
to
mam
beanng
surfaces
on
both SIdes of
cylinder
block and cap and then mstall crank
shaft
5
Install
mam
beanng
cap
and
tight
en
bolts
to
speCified
torque
Tlghterung torque
4 5 to 5
5
kg m
33 to 40 ft Ib
Notes
a
Apply
sealant
to
each Side of
rear
main
bearing
cap and each
corner
of
cyhnder
block
as
shown in
Figure
EM 79
b
Arrange
parts so arrow
mark
on
bearIng
cap
faces toward front of
engme
c
PrIor
to tightening bearing
cap
bolts
place bearing
cap
m proper
posttIon
by shifting
crankshaft
m
the aX181 direction
d
Tighten bearing
cap
bolts gradually
m
two to three
stages
outwardly
from
center
beanng
m
the sequence
as
shown
m
Figure
EM 88
e
After
securing bearIng
cap bolts
ascertain that
crankshaft
turns
smoothly
@ @
@ @EM543
FIg
EM 88
Torque
sequence
off
cap bolts