1968 DATSUN 510 Service Repair Manual

60
SIX

Table
1
ENGINE
SERVICE
DATA
AND
SPECIFICATIONS

GENERAL
SPECIFICATIONS

Cylinder
Arrangement

DIsplacement

Bore
and
Stroke

Valve

Arrangement

MaxImum
Brake

Horsepower

MaxImum
Gross

Torque

Firing
Order

Engme
dle

Smgle
POint

Dual
Pomt

CompressIon
RatIo

Engme
Idle
Mamfold
at
Idle

rpm

011
Pressure
hot

@
2
000

rpm

i
TIGHTENING

TORQUE
ft
Ib

kg
m

Cylinder
Head
Bolts

1st
turn

2nd
turn

Flywheel

Flxmg
Bolts

M
In

Beanng
Cap
Bolts

Camshaft
Gear

Bolt

I
011
Pan

1
1

fF
I

011

Pump

QII
Stramer

F

I
Crank

Pulley
Bolt

SPECIFICATIONS
In
mm

Valve
Mechamsm

Valve
Clearance
Hot

Valve
Clearance
Cold

Valve
Head
DIameter
Intake

Valve
Head
DIameter
Exhaust

Valve
Stem

DIameter
Intake

Valve
Stem
DIameter

Exhaust

Valve

Length
Intake

Valve

Length
Exhaust

Valve

LIft

Valve

Spring
Free

Length
Outer

Valve

Sprmg
Free
Length
Inner

Vaiv

Spnng
Loaded

Length
Outer

Valve

Spring
Loaded

Length
Inner

Valve

Sprmg
Assembllld

HeIght
Outer

Valve

Spnng
Assembled

Helght
Inner

Valve

Spnng
Effective
Turns
Outer

Valve

Sprmg
EffectIve
Turns

Inner

Valve
GUIde

Length
Intake

Valve
GUIde

Length
Exhaust

Valve

GUIde

HeIght
from
Head
Surface

Valve
GUIde
Inner
DIameter
Intake

Valve
GUIde
Inner
DIameter
Exhaust

Va
Ive
GUIde

Outer
Dlam
eter
Intake

Valve
GUIde
Outer

DIameter
Exhaust

Valve
GUIde
to

Stem
Clearance
Intake

Valve

GUIde
to
Stem
Clearance
Exhaust

Valve
eat

W
dth
Intake

Valve

SEtat
WIdth
Exhaust
4
m

Ilnil

97
3
cu
m
1595cc

3
2677
x
2
9016
In
83
x
73

7mm

Overhead
Camshaft

96

@
5
600

rpm

110
ft
Ib
13
8
kg
m

@
3
600

rpm

1
3
4
2
r

600

rpm

700

pm

85
1

i7
7
In

Hg
450mm

Hg

54
to
60
Ib
m
2

3
8
tQ
4
2

Iig
cm

325
4
5

39
8
5
5

68
No
75
9
9
50

to
1039

325

to
39
8
4
5

to
5
5

362
to
43
4
50
to
60

2
9
to
5
1
0
4
to
0
7

108
to
15
2
1
5
to
2
1

58t087
08to
12

1157
to
130
1
160
to
180

o
118
0
30

o

0C
98

0
25

1
50
38

0

1
30
33
0

031
80

031
80

456
1159

4
57
116
O

03937
100

2
05
52
0

1
77
44
96

1
21

@
1054
Ib
3
07

@
47
8

kg

o
96

@
56
Ib
24
5

@
25
5

kg

1
53

@
63
9

Ib
38
9

@
29

0
kg

1
38

@
27
1
Ib
35

@
123

kg

45
I

55

2
32
59
0

2
32
59
0

0409

to
0
417
104

to
106

0315

to
03154
80

to
8018

0315
to
03154
80
to
8
Oi8

04718
to
04723
11
985
to
11
996

04718
to

04723
11
985
to
11
996

00006
to
00018
0
015

to
0
045

00016
to
00028
0040

to
0070

o
055

to
0
071
1
4

to
1
8

0063
to
0079
1
6
to
20

ENGINE
61

SPECIFICATIONS
In
mm
continued

Valve
Seat
Interference

Fit
Intake

Valve
Seat
Interference
Flt
Exh

ust

Valve
GUide
Interference
fit

I

Camshaft
and

Timing
Chain

Ca
mshaft
End

Play

Camshaft
Lobe
LIft

Camshaft
Journal
Diameter

Camshaft
Bend

Camshaft

Bearing
Inner
Diameter

Camshaft
Journal
to

B

arlng
Clearance

Rocker
Arm
Lever
Ratio

Connecting
Rod

Center
Distance

Standard

Bearing
Thickness

Big
End

Play

Connectmg
Rod

Beanng
Clearance

Connecting
Rod
Bend

per
3
937
In
100mm

Crankshaft
and
Main

Beanng

Journal
Diameter

Journal

Taper
and
Out
ot
Round

Crankshaft
Free
End

Play

Crank
Pin
Diameter

Crank
Pin

Taper
and
Out
ot
Round

Main

Bearing
Thickness

Main

Beanng
Clearance

Crankshaft
Bend

Piston

Standard
Diameter

Ellipse
Difference

Ring
Groove

Top

Second

011

Piston
to
Bore
Clearance

Piston
Pm
Hole
Offset

Piston
Pin

Piston
Pin
Diameter

Piston
Pin

Length

Piston
Pin
to
Piston
Clearance

Interference
Fit
ot
Piston
Pin
to

Connecting
Rod

Bushing

Piston

Ring

Ring
Height

Top

Second

011

Side
Clearance

Top

Second

011

Ring
Gap

Top

Second

011
Table
1
ENGINE
SERVICE
DATA
AND
SPECIFicATIONS
continued

00031
to
0
0043
0
OB

to
0
11

00024
to
0
0039
006
to
0
10

00011
to
00019
0027
to
0049

00031
to
0
0150
0
08
to
0
38

o
261
6
63

18877
to

1
8883
47
949
to
47
962

o
0020
0
05

1
8898
to
1
8904
48

0
to
48
016

00015
to
0
0026
0038
to
0
076

15

5
507
to
5
509
139
87
to

139
93

o
0588
to
0
0593
1
493
to
1
506

00079
to
0
0118
0
20
to
030

o
0006
to
0
0022
0
014
to
0
056

o
0012
003

2
1631
to
2
1636
54
942
to
54
955

less
than
00012
003

o
002
to
0
0059
0
05

to
0
15

1
9670
to
1
9675
49961
to
49
975

less
than
0
0012
0
03

o
0717
to
0
0722
1

822
to
1
835

o
0008
to
0
0028
0
020
to
0
072

00019
005

3267

to
3
269
8299
to
83
04

0013

to
0014
032
to
035

008
20

o
08
2
0

o
16
4

0

00010
to
0
0018
0
025
to
0
045

00394
0
0020
1
O
0
05

o
8266
to
0
8268
20
995
to
21
0
0

2
8346

to
2
8445
72
00
to
72

251

o
0003

to
0
0004
0
OOS
to
0
OlD

00006
to
0
0013
0015
to
0
033

o
0787
2
0

o
0787
2
0

o
1575
40

00018
to
00031
0
045
to
0
078

00012

to
0
0025
0030
to
0
063

00010
to
00025
0025
to
0
063
i
J

I

n

T

00091
to
0
0150
023
to
038

00059
to
0
0118
0
15
to
0
30

00059

to
0
0118
0
15

to
0
30

CHAPTER
SEVEN

FUEL
SYSTEM

The
fuel

system
mcludes
the

fuel

tank

straIner

pump
carburetor
arr
cleaner
and

necessary
lines

Inspect
components
for
leaks

and
deterioratIOn
whenever
mamtenance
is

done
The
fuel
stramer
should
be

mspected
peri

odIcally
and
cleaned

AIR
CLEANER

The
au
filter
element
is
viscous

paper
and

does
not

require
cleanmg
Replace
It

every

24
000
mlles
or
more

frequently
under
harsh

condItIons

Several
mInor
differences
exist
between

vehicles

dependmg
on
the

type
of
emisSIOn
con

trol
device
used

Figure
1
shows
location
of
the

air
cleaner
on
the

engme
and

parts
compnsing

the
cleaner

system
on
model

years
through
1969

Figure
2
shows
the

changes
for
1970
and
later

Warm
air
is

supplIed
to
the
air
cleaner
from
the

exhaust
mamfold
to

prevent
carburetor

Icmg

AIR
CLEANER
REMOVAL

AND
REPLACEMENT

1
Unthread
the

WIng
nut

atop
the
cleaner

assembly

2
Remove
the
two
bolts

holdIng
the
air
cleaner

to
the

support

3

Disconnect
the

aIr
cleaner
duct
from

the
base

of
the
cleaner
intake
throat
4
LIft
off
the
aIr
cleaner

body
and
remove
the

aIr
filter
as
shown
m

Figure
3

To
remove
the
arr
cleaner

proceed
as
follows

1
Perform

steps
1

through
4
above

2
Unscrew
the
band
bolt
at
the
base
of
the

air
cleaner

3
DIsconnect
all
hoses

leadmg
to
the
air

cleaner

4
Pull

up
on
the

body
of
the
air
cleaner
and

remove
from
carburetor

5

Except
for
the

au
filter

element
thoroughly

clean
all

parts

6
Reverse
the

steps
above
for

reassembly

FUEL
STRAINER

The
fuel
stramer

IS
located
on
the

nght
hand

side
of
the

engme
compartment
Figure
4
shows

the
fuel
stratner
hoses

clamps
and
the
mount

Ing
clIp
that
holds
the
fuel
stramer
In

place
The

fuel
stramer
IS
of
the

cartrIdge
type
and
uses
a

fiber
mat
and

nylon
as

strainer
elements
The

fuel
stramer
should
be

mspected
frequently
for

foreIgn
material
and

replaced
at
least

every

24
000
rmles

1
DIsconnect
the
inlet

and
outlet
hoses
from

the
fuel
stratner
Make
certatn
that
the
mlet
hose

bottom
IS
not

permItted
to
fall
below
the
level

of
the
fuel
tank

or

leakage
wIll
occur

13
8

t

12
i

l

2
cover
packIng

3
Co
er
packIng
n

4
VISCOUS
paper
eleme
23

filter

5
Band

6
Insuletor
OWer
body
pecking

1
Element
pac
l
lng
liL
J
J
4

9
Grommet

10
Grommet

11
Band
bolt
lll
i
8

12
WIng
nut
packing

13
Wing
nut
AV
T

14
support

15
Ilolt

19
I
Il
cleaner
cover

22
ExhaUst
manIfold

23
Ilolt

24
I
Il
cleaner
duct
i
9
10

S
e
l

ci
r
C

t
f
J

14
IS

13
1
0
lot

1
Air
cleaner

3
Co
er
paclung

4
Viscous
paper
element

FIlter

5
Band

6
Insuletor

7
Lower
body
packmg

8
Element
peclllng

10
Grommet

11
Band
bolt

16
Compensator
assembly

17
Idle
compensator
connectmg

tube
l

1
1
@

5
11
10
I
13
12
G
3
4
7
0
g
l
i

FUEL
SYSTEM
6S

CD

2
Remove
the
fuel
stramer
from
Its

mountlng

clIp

3

Replace
the
fuel
stramer
as

reqUIred

4
Reconnect
the
mtake
and
outlet
fuellmes

FUEL
PUMP

The
fuel

pump
conSISts
of
a

body
rocker
arm

and
lmk

assembly
dIaphragm

dIaphragm

spring
seal
and
mlet
and
outlet
valves
The
l
r

t

1
9

l

F
r

fl

rocker
arm
IS
dnven

by
a

pump
cam
mounted

on
the
catnShaft
In
the
front

part
of
the
rocker

arm
front
cover

assembly

Figure
S
shows
the
fuel

pump
for
all
models

through
1970

Figure
6
illustrates
the

fuel
pump

for
1971
and
later
models

Fuel

pump
Testing

Fuel

pump
pressure
and
fuel

pump
capacity

testlng
are

performed
m
tests
descnbed
below

Both
tests
are

performed
With
the
fuel

pump

mounted
to
the

engme

Static
Pressure
Test

1
DIsconnect
the
carburetor
fuel
lme
at
the

carburetor

2
Install
an

adapter
and
a
tee

fittmg
to
the

fuel
lIne
and
attach

a
SUItable

pressure
gauge

3
Connect

adapter
to
carburetor

4
Start
and
run

engine
at

varymg

speeds

5
The

gauge
reading
IS
static
fuel

pressure
It

should
remam
between
256
and
341
Ib
m
2

018
to
0
24

kg
cm2
Pressure
below
thelower

lImIt
mdlcates
extreme
wear
on
one

part
or

gen

eral

wear
on
several

pump
parts
Pressure
above

the

upper
hrmt
indIcates

an

excessIvely
strong

diaphragm

spnng
or
a

dIaphragm
that
is
too

tIght
Both
condItIons

require
the

removal
of
the

fuel

pump
for

necessary
repaIr
or

replacement

01
01

G

1
3

2
Co
er
gasket

3
Set
screw

4
Val
e
assembly

5
Val
e
gasket

6
Val
e
retelner

7
Retainer
screw

8
Elbow
connector

9
lower
body
assembly

With
arm

10
Rocker
arm
assembly

11
Rocker
arm
link

12
Complete
rocker
arm
and
link
13
Rocker
arm
pin

14
Rocker
arm
spnng

15
Dlephragm
assembly

16
Diaphragm
spring

17
Sehcrew

18
Fuel
pump
pecking

19
Fuel
pump
spacer

20
Spnng
lock
washer

21
Hex
nut

22
Fuel
pump
stud

23
Fuel
pump
stud
2

17

r
I
I
I
I

I
I

I
I
I

J

9
I

I
15
I
0
5

I

16
1i
20
21
g

tI
i

I
lb
18

22
23
r

G

i
@

1
fuel
pump
assembly

2
CoVBr
gasket

3
VBNB
assemblY

4
VBNB
gBsl
et

5
Fuel
Inlet
connect01

6
fUBI
outlet
connector

7
OwerllodY

a
Rocker
Bll
Ireturn
spnng

9
l
IBP
1rBgm
BssemblY

10
l
IBphlBgm
sQnng

12
Fuel
QumQ
packIng

13
fuel
pump
spBcer

14
lOc
l
wBsl
er

15
lex
nut

16
PIBIn
was
1Br

17
Stud