1973 DATSUN B110 service

EMISSION
CONTROL
AND
TUNE
UP

SERVICE
DATA
AND

SPECIFICATIONS

Valve

clearance

Hot
Intake

Exhaust
mm
in

rom

in

rom
in

kg
lb
0
35
0
014

0
35
0
014

10
to
15
0
394
to
0
591

10
22

Fan
belt
tension

Tightening
torque
Cold

Cylinder
head
bolts

kg
m

ft
lb

1st

turn

2nd
turn

Re

tightening
torque
Hot

Manifold
nuts

Carburetor
nuts
4
0

to
4
5

29
to
33

5
5

to
6
0
40

to
43

6
0

to
6
5
43

to
47

0
9

to
I
4

6
5
to
10

0
5

to
1
0
3

6
to
7
2

1
5

to
2
0
II
to
14

Spark
plugs

Oil

capacity
of

engine
including
oil
ftIter

Maximum
L

US

gal
Imp
gal

L

US

gal
Imp
gal
3
3

U
14

2
3

Ii
Minimum

Water

capacity
of

cooling
system

Without
heater

L
US
gal

Imp
gal

With
heater

L

US

gal
Imp
gal
4
2
1

U

4
9

I
4
11

12
5

to
14
5

I78
to
206
350

Compression
pressure
at

rpm
kg
em

psi

Battery
specific
gravity

Permissible
value
Fully
charged
value

at
200C
680F

Frigid
climates

Tropical
climates

Other

elima
tes
Over
1
22

Over
1
18

Over
1
20
1
28

1
23

1
26

Ignition
timing
degree

Distributor
50
B
T
D
C

Condenser

capacity
mm
in

degrees

IlF
Micro
Farad
0
45
to

0
55
0
018

to
0
022

49
to
55

0
22

5
Point

gap

Dwell

angle

Condenser
insulation
resistance
Mil

Mega
ohms

ET
25

ENGINE

Improper
air
fueled
mixtur

into

cylinder
walls
Check
the
fuel

system

Seizure
of

sliding

parts
Lkl
rease
of
oil

pressure
Previously
mentioned

Insufficient

clearances
Reassemble
with
the

designated
clear

ances

Overheat

Previously
mentioned

Improper
fuel
mixture
Check
the

fuel
system

SERViCE
JOURNAL
OR

6UU
ETIi
l
REFERENCE

DATE
JOURNAL
or

BULLETIN
No
PAGE
No
SUBJECT

ET
34

1t

DATSUN

1200

MODEL
B

110
SERIES

L
NISSAN

I

NISSAN
MOTOR
CO
LTD

TOKYO
JAPAN
SECTION

EM

ENGINE

MECHANICAL

GENERAL

DESCRIPTION

ENGINE

DISASSEMBLY

INSPECTION
AND
REPAIR

ENGINE
ASSEMBLY

SERVICE
DATA
AND

SPECIFICATIONS

TROUBLE
DIAGNOSES
AND

CORRECTIONS
EM
I

EM
4

EM
8

EM
25

EM
33

EM
38
GI

ENGINE

12
000
to
12
011
dia
0
4720
to

0
4724

I

t
r
1

1
1

ftlM

e

f
i1i

e

e

I

Standard

alve
guide

hole
diameter

UNIT
mm

in

Fig
EM

Valve

guide
hole

Fig
EM
38

Removing
and

refitting
valve

guide

Guide

hole
For
standard

inner
valve

guide
12

011
to
12

000
dia

0
4724

to
0

4720
dia

12

211
to
12
200dia

0
4804

to
0
4800
dia
diameter

rom
in
F
or
service

valve

guide

3

Press
new

valve

guide
into
the
valve

carefully
so
that

it
will

fit

smoothly
after

heating
the

cylinder
head
to

ISOo
to
2000C
3020

to
3920F

The
valve

guide
of
0
2
mm
0
0079
in
oversize

diameter

is
available
for
service

Interference
fit
of
valve

guide
to

guide
hole

mm
in
0
022
to
0
044

0
0009
to

0
0017
4
Ream

the
bore
with

the
valve

guide
pressed
in

using

a
valve

guide
reamer

Special
tool
STl1080000

Reaming
bore
8

000
to
8
015
mm

0
3
ISO

to
0
3160
in

5

Correct
the
valve
seat

surface
with
the
new
valve

guide
as
the
axis

Valve

seat
insert

Check
the
valve
seat
inserts
for

any
evidence

of

pitting

at
valve
contact
surface
and
reseat
or

replace
valve
seat

insert

if
the
valve
seat
insert
is
worn

excessively

The
valve

seat
insert

of
O
S
mrr
0

0197
in
oversize

is

available
for
service

Fig
EM
39

Valve
seat
correction

INTAKE

D

N

o

o

i
i

o
2Q
Qi
tQJ

g
1
181

u
xO
00391

t
4

I

J
1

11
33
5d

a

o
I

11
3191

37

080
to

37
096
dill

1
459
to
1
460
M

N

M

N

o

0

0

ON

o

0

j
EXHAUST

E

r
33
080
to

33
096
dia
N

Ol

1
302
to
1
303
c
i

1

2

I
N

0

r26
dia

11
023

0

0
8

to
1
0C

10
0315
to
0
03941

UNIT
mm

in
Cl

Q

u

o

Fig
EM
40

Standard
valve
seat
insert

EM
12

ENGINE
MECHANICAL

Cylinder
head
recess
diameter

For

standard
insert

Intake

Cylinder
head

recess
diameter

mm
in
For
service
insert

For
standard
insert

Exhaust

For

service
insert

Interference

fit

mm
in
Intake

Exhaust

Replacing
the
valve
seat
insert

I
Old
valve
seat
insert

may
be
removed

by
boring
up

to
such
an
extent
that
the
valve
insert
is

collapsed

The
machine

depth
stop
should
be
set
so
that

boring

cannot
be
made

beyond
the
bottom
face
of
the

insert

recess
in
the

cylinder
head

2
Select
a
suitable

valve
seat
insert

and

verify
the

outside
diameter

3
Machine
the

recess
for
the
valve
seat
insert
on
the

cylinder
head

correctly
along
the
concentric
circle
to

the
valve

guide
center
so
that
the
valve
seat
insert
is

fitted
correctly

4

Heat
the

cylinder
head
to
a

temperature
of
1500
to

2000C
3020
to
3920
F

5
Fit
the
valve

seat
insert

ensuring
that
it
beds
on
the

bottom
face
of
the

recess
completely

6
The

valve
seats

newly
fitted
should
be
cut
or

ground

to
the

specified
dimensions
as
shown
in

Figure
EM
44
37
016

to
37

000
dia
1
4576
to
I
4564
dia

37
516

to
37
500
dia

I
4766

to
1
4754
dia

33
016
to
33

000
dia
1
2996
to
1
2990
dia

33
516

to
33

500
dia
1
3196

to
1
3190

dia

0
064
to

0
096

0
0025

to
0
0038

0

064
to
0
096

0
0025

to
0
0038

I

t

v

Al

r
A2

I
onl

J

J
n
llI

lltl
I
G
llW

6

UNIT
mm

in

Al
37
016
to
37
000
dia
1
4576
to

14570
dia

A2
33
016
to
33
000
dia
1
2996
to
1
2990

dia

0
34
7
to
34
5
dia
1
3659

to
1
3581
dia

O2
28
7

to
28
5

dia

I
1299
to
1
1221

dia

1
1
3

0
0512

2
1

8
0
0709

Fig
EM

41

Valve
seat
insert

EM
13

ENGINE
MECHANICAL

5

M

co

El

co

I

ED

I

UNIT
mm

in

Fig
EM
49

Measuring
points

Outer
diameter
of

piston
skirt
measured
value

A

Piston
eylinder
clearance

B
0
023

to
0
043

mm
0

0009
to
0
0017
in

Boring
allowance
C
0
02

rom
0
0008
in

Cylinder
bore
to
be

machined

A
B
C
A

om
to
0
02
mm

0
0004
to
0

0008
in

4

Machine
the

cylinder
bore
to

the
determined
inner

diameter

Note
To

prevent
strain
due
to

cutting
heat

bore
in

order

of

2
4
3

or
cylinders
3
4
2

5
Do
not
intend
to
bore
in
one
time
but

cut
0
05
rom

0
0020
in

or
so
at

a
time

6
When

measuring
cylinder
bore

immediately
after

boring
note
that
the

cylinder
block
is

expanded
due
to

cutting
heat

7

Finish
the

treated

cylinder
bore
to
the

final
size

by

means
of

honing

8
Measure
the
finished

cylinder
bore
for
a

elliptic
or

tapered
part

9
Measure

clearance
between
the

piston
and

cylinder

This
clearance
can
be
checked

easily
by
using
a

feeler

gauge
and
a

spring
scale

EM
17
Feeler

gauge

0
03mm
0
0012
in

Pull
force

o
5to

5kg

11
to3
3
lb

i

Fig
EM
50

Piston
to

cylinder
clearance
check

Standard

clearance

rom
in
0
023

to
0
043

0
0009
to
0
0017

0

03
0
0012
Feeler

gauge
mm
in

Extracting
force

kg
Ib
0
5
to
1
5

1
1

to
3
3

Note
If
the

cylinder
bore
is
worn

beyond
the
wear
limit

use
the

cylinder
liner

Undersize

cylinder
liners

are
available
for
service

Interference
fit
of

cylinder
liner

Cylinder
block

0
8
to
0
9
mm
0

0315
to
0
0354
in

Cylinder
liner
for

service

400

undersize
Outside
diameter

mm
in

77
05
to

77
00

3

0330

to

3
0310

77
55

to
77
50

3

0530

to

3
0510

78
05

to
78
00

3
0730
to

3

0710
72
5

to
72
6

2

854

to
2
858
Inner
diameter

mm
in

72
5
to
72
6

2
854
to
2
858

450

undersize
72

5
to

72
6

2
854
to
2

858

500

undersize

ENGINE
MECHANICAL

Note
8
When
the

piston
ring
only
is
to
be

replaced

without
the

cylinder
bore

being
corrected
measure

gap
at
the
bottom
of
the

cylinder
where
the
wear
is

minor

b
Oversize
piston
rings
are
available
for
service

50
100
150
oversize

4

Measure
the

piston
pin
hole
in
relation
to
the
outer

diameter
of
the

pin
If
wear
exceeds
the
limit

replace

such

piston
pin
together
with
the

piston
on
which
it
is

installed

Piston

pin
diameter

mm
in
17447
to
17452

0
6869
to
0
6871

65
23
to
65
48

2
5681
to
5
779
Piston

pin
length

mm
in

Piston

pin
hole
dia

meter
mm
in
17460
to
17453

0

6874
to
0
6871

5

Fitting
of

piston
pin

Determine

the

fitting
of

the

piston
pin
into

the

piston

pin
hole
to

such
an
extent
that
it
can

be

rmger
pressed
at

room

temperature
This

piston
pin
must
be

tight
press

fitted
into

the

connecting
rod

EM131

Fig
EM
54

Piston

pin
fitting

EM
19
g

1

EM132

Fig
EM
55

Measuring
piston
pin
diameter

Piston

pin
to

piston

clearance

mm
in
0

006
to
0

008

0
0002

to
0
0003

Interference
fit
of

piston

pin
to

connecting
rod

mm
in
0
020
0
0008

CONNECTING
ROD

If
a

connecting
rod
shows

any
scratch
or
score
mark

or
is

pitted
on

both
sides
of
the
thrust
face
and
the

large

end

correct
or

replace
it

EM133

Fig
EM
56

Connecting
rod

aligner

2
Check

for
bend
or
torsion

using
a

connecting
rod

aligner
If

bend
or
torsion

exceeds
the
limit
correct
or

replace
the

connecting
rod

ENGINE
MECHANICAL

3
Ascertain
that
the

clearance
is
within
double
the

figure
listed
below

If
it
is

not

replace
the

bearing

4

Handle
the

connecting
rod

bearing
in
the

same

manner

Connecting
rod

cap
tightening
torque

3
2

to
3
8

kg
m
23

to
28
ft
lb

Bearing
crush

All
main

bearing

mm
in
o
to

0
03
0
to

0
0012

All

connecting
rod

bearing
mm

in
0
Ql5
to
0
040

0

0006
to
0
0016

Main

bearing
undersize

Bearing
size

Bearing
top
Crank

journal

1
100

thickness
mm
in

diameter
mm
in

STD
1
835
to
1
822

49
951
to
49
964

0
0722
to
0
0717
1

9666
to
1
9671

25
1

960
to
1
947

49701
to
49
714

undersize
0

0772
to
0

0767
1

9567
to

1
9572

50
2
085
to
2
072

49451
to
49

464

undersize
0
0821
to
0

0816
1

9469
to
1

9474

75
2
210
to
2
197

49
201
to

49
214

undersize
0
0870
to
0
0865

1
9370

to
1

9376

100
2
335
to

2
322
48
951
to

48
964

undersize
0

0919
to
0

0914
1
9272
to
1
9277
Connecting
rod

bearing
undersize

Bearing
top
Crank

pin

Bearing
size

thickness
mm
in
diameter

mm
in

1
500
to

1
508
44
961

to
44
974

0
0591
to
0
0594
1
8489

to
I

7706

8

1
540

to
1
548

44

881
to
44
894

undersize
0
0606
to
0

0609
1
7670
to
I
7675
STD

12
1
560

to
1
568
44
841

to
44
854

undersize
0
0614
to
0

0617
I
7654
to
I
7659

25
1
625
to
1

633
44
711

to
44
724

undersize
0
0640

to
0

0643
1
7603
to
I
7608

50
I
750
to

1
758
44
461
to
44
474

undersize
0
0689
to
0

0692
1
7504
to
I
7509

75
1
875
to
1
883
44
211
to
44
224

undersize

0
0738
to
0
0741
1
7406
to
I
7411

100
2
000
to
2
008
43
961
to
43
974

undersize
0
0787
to
0
0791
1
7307
to
I

7313

Fitting
camshaft

bushings

When
clearance
exceeds
the
specified
value
remove

all
camshaft

bushings
by

using
the

special
tool
and

replace

with
service

parts

Notes
3
Coincide
the

bearing
oil
hole
with
the
oil
hole

of
the

cylinder
block
side

b
After

replacing
all
bushings
correct
the
bear

ings
by
line

boring

c

I
nstall
the

taper
plug
into
the

cylinder
block

applying
the

sealing
agent

Fig
EM
65

Replacing
camshaft
bushings

EM
23