1968 DATSUN 510 check oil

28

CHAPTER
FIVE

011

gallery
supphes
011
to
the
crankshaft
mam

beanngs
Dnlled

passages
m
the
crankshaft

direct
oil
from
the

mam

bearings
to
the

con

nectmg
rod

beanngs
011

mJected
from

jet
holes

in
the

connectIng
rods

IS
directed

to
the

cylmder

walls
and

piston
pins
0U
dlstnbuted
from
the

mam

gallery
enters
the
cham
tensioner
The

pad

IS
held

against
the
cham

by
011

pressure
and

spnng
tension
The

tmung
chain
receives
011

through
the

Jet
located
near
It

LubncatIon
IS

supphed
to
the

cyhnder
head

mam
011

gallery
through
the
crankshaft
center

beanngs
Camshaft

beanngs
on
the

cyhnder

head

are
fed

directly
from
the

cyhnder
head

mam

gallery
The
rocker

arms
and
valves
are

lubncated

intermittently

by
the
camshaft
011

gallery
and
the

small
channel
at
the
base
CIrcle

portIon
of
each
cam
OllIS

supphed
to
the
cam

shaft
011

gallery
through
the
No
2
and
No
3

camshaft

bearings

OIL
PUMP

The
011

pump
IS
mstalled
m
the
bottom
of

the

front
cover
as
shown
in
2
The

pump
is

held
m

place
by
four
bolts
to
the
front
cover
It

IS
a
rotor

type
dnven

by
the
011

pump
spmdle

whIch
IS
dnven
off
of
the
crankshaft
Pressure
IS

regulated
by
a
valve
shown

m

Figure
3
A
slot

at
the

top
of
the
dnve
rotor

engages
a

dog
clutch

at
the
lower
end
of
the
distnbutor
dnve
shaft

assembly
The

011

pressure
rehef
valve

IS
not

adjustable
In
the
released

pOSition
the
valve

pernnts
011
to
be

by
passed
through
a

passage
on

the

pump
cover
to
the
mlet
Side
of

the

pump

CD
CD

Oil

Pump
Removal

1
Remove
the
dIStnbutor
from
the

top
of
the

front

cover
Make
certam
to
mark
the

posItIon

of
the

dtstnbutor
relative
to
the

front
cover
so

that

It
can
be

replaced
m
the

same

posItIon

2
Drain
the

engme
od

3
Remove
the
front
stabIhzer
from
the
bottom

front
of
the

engme
compartment

4
Remove
the
front

splash
shIeld
from
the
bot

tom
front
of
the

engine
compartment

5
Remove
the
bolts

holdmg
the
oil

pump
to

the

front
cover
Remove
011

pump
and
drive

gear

spmdle
from
the
front
cover

Disassembly
Inspection
Repair
and

Assembly

Figure
4
IS
an

exploded
VIew
of
the
011

pump

assembly
Refer
to
the

figure
and
the

accom

panymg
index

1

Separate
the

body
cover
from
the

011

pump

body
by

unscreWIng
the

secunng
bolt

2
Remove
the

pump
dnve
mechamsm
and

dnver

gear
from
the

pump
body
Clean
the
dIS

assembled

parts
m
a
suitable
solvent

3

Inspect
for

Signs
of
wear
or

damage
Reparr

or

replace
as

necessary

4

Inspect
the
drive
rotor
shaft
for

excessive

wear
or

sconng
Check
the

followmg
clearances

a
Side

clearance
between
mner
and
outer

rotor
00020
to
00047
m
005
to

0
12mm

b

Tip
clearance
0
0492

m
0
12mm

c
elearance
between

outer
rotor
and

body

00059

to
0
0083
in
015
to
0
21mm

5
Check
the
relief
valve

spring
dtmenslOn
to

ensure
that
It
has
not
lost
tension

Free

length

should
be
2
24

m
57mm

Compressed

length

54

CHAP1ER
SIX

2
Set
the
valve

spnng
seat

m

position
on
the

top
of
the
block
and

over
the

valve
stem

3
Place
the
oil
seal
over
the

valve
stem

4
Place
the

mner
and

outer
valve

spnngs
over

the
valve
stem

S

Place
the

spnng
retamer

over
the

springs

compress
spnngs
With

spring
compressor
Figure

55
and
mstall
valve
collets
around
valve
stem

so
that

they
lock
onto
stem

6
Release

spnng
compressor
If
collets
are
firm

ly
locked
onto
the

groove
m
the

valve
stem

assembly
IS

complete

7
Install
the
rocker

guIde
on

top
of
the

valve

stem
when

assemblmg
the
rocker

pivot
assembly

VaIve
Rocker
Pivot

Assembly

1
Thread
lock
nut
onto
valve
rocker

pivOt
and

place
rocker
retaIner
over
the
valve
rocker

pivOt

2
Thread
the
above

assembly
mto
the
rocker

bushIng
protrudIng
from
the

head

Camshaft

Assembly

1
Mount
the

locatIng
plate
on
the
front
of
the

head
as

shown
m

FJgIlI
1
56

2
From
the
back
of
the
head

carefully
InSert

the
camshaft

through
the

four
camshaft

beanngs

being
ca
efu1
not
to
move
or

damage
the
bear

ings

NOTE
Install
the

CQJ7IShaft

sprocket

onto
the

camshaft
so
that

the
three

locating
holes
are

at
the

top
left
and

bottom
h

1
3

Install
the

camshaft

sprocket
and
fuel

pump

cam
onto

the
front
of
the

camshaft
and

torque

to

specificatIon

4
Check
the
camshaft
for
end

play
using
a

feeler

gauge
as

preViously
described

Rocker
Pivot

Assembly

1
Push
down
on
valve

spnng
with
screwdriver

and
insert
rocker

piVOt
arm
between
camshaft

and
valve
stem

Insert
rocker
valve

guide
onto

top
of

valve
stem

at
this
time

2
Install
valve

rocker

springs
over

top
of
rocker

pivot
arm

Piston
and

Connecting
Rod

Assembly

1

Assemble
the
four

pistons

pms
and
connect

mg
rods
Secure

piston

pm
The

connecting
rod

IS

press
fitted
onto
the

pISton
pin
With
from
1
to

3
tons
of
force

NOTE
The

pistons
are

marked
with

an
F
which

should

point
toward
the

front
of
the

engine
The

connecting

rods

must
be
installed
so

that
the
011

Jet
In
the

large
end

IS

positioned
to

ward
the

right
Side

of
the

tnglne
The

center

of
the

piston
pin
IS

oD
set
In

relation
to
the

center

of
the

piston
so

correct

assembly
is
cntical

2
Use
a

nng
expander
to
install
the

rings
onto

the

pistons
Install
the

top
and
rmddle

nngs

with
the
marks

up

3

Lubncate
the

rod

bearings
hghtly
and
mstall

them
into

their

respective

connectIng
rods
and

rod

caps

56

CHAPTER
SIX

NOTE
Lubncate
the

cylinder
walls

with
new

engine
oil

prior
to
insertIOn

of
pistOns
Make

certain
that
the

ring

gaps
are
not
In
line

wIth
one
another

Place

the

gaps
180

degrees
from
each

other

and
not

posltloned
either

front

to
back
or

dIrectly
in
line
with

the

piston
pIns

CAUTION

Use
extreme
care
when

Inserting
pzs

tons
so
as
to
avoId

crankshaft

damage

14
With
the
aid
of

a

nng
compressor
illStaIl

the

pISton
and

connectmg
rod
assembhes
into

the

cyhnder
block

as
shown
in

Figure
60
Make

certain
the

proper
piston
IS
mserted
mto
the

proper
hner
and
the
F
on
each

pISton
faces

forward

@

15
Install

beanngs
mto
the

connectIng
rod

caps

after

lubncatmg
them

hghtly

16

Gently
push
connecting
rods
With

beanngs

installed
down
the

cyhnder
until
contact

IS
made

with
the
crankshaft

17
Set

connectIng
rod

caps
over
crankshaft
and

insert

COnnectIng
rod
bolts
Make
certam
that
the

numbers
on
the
rods

and
the
rod

caps
face
in

the
same
direction

18

Tighten
rod
bolts
to
the

proper
torque
speci

ficatIon

as
shown

m

Figure
61

I
J

@v

N

i

19
Check
the

connecting
rod
end

play
With
a

feeler

gauge
as

previously
described

Cylinder
Head
Installation

1

Spread
a
suitable

gasket
seahng
agent
on
the

top
of
the

cylinder
block
and

position
a
new
head

gasket

2

Spread
seahng
agent
on

top
of
the

gasket

CAUTION

PositIon
the

crankshaft
so
that
no

pzston
IS
at

top
dead
center

Before

installing
head

point
the

keys
on
the

camshaft
and

crankshaft

straight
up

Once

the
head
zs

Installed
do
not

rotate
the

camshaft
and

crankshaft

separately
as

damage
to
the

piston

tops
might
result

3
Place
the

cyhnder
gently
onto
the
head

gask
et

NOTE
Three

dIfferent

types
of
bolts

are
used

to
hold
down
the
head

Make

certain
the

proper
ones
are
used

In

the

proper
places

4
Insert
head
bolts

through
holes
ill
head
and

thread
them
mto
the

cyhnder
block

5

Refemng
to

Figure
62

use
a

torque
wrench

and
Datsun
tool
ST49010000
or

equivalent
to

tIghten
the
head
bolts
to

specIficatIon
Tighten

them

gradually
m
three
or
four

stages
wlnle
fol

lOWIng
the

sequence
diagram
Torque
values
are

hsted

m
the

specIfication
table

58

CHAPTER
SIX

Notch
for

t1mmg
check

Camshaft

locatmg
hole

Timmg

mark

11
Should

none
of
the
above

adjustments
be

adequate
return
the
camshaft

sprocket
to
the

No
1
hole
and

replace
the
Oll

pump
cam
and

bolt
Under
these
conditIons
the

cham
must
be

replaced

Front
Cover
Crankshaft

Polley

And
Water

Pomp
InstaDation

1
Press
a
new
Oll
seal
into
the
front
cover

2

Apply
gasket

seahng
compound
to
both
sides

of
the
left
hand

and

nght
hand
front

cover

gaskets
Mount
the

gaskets
and

front
cover
to

the
block
With
bolts
and
lockwashers
Check

the
seal
of
the
head

gasket
at
the

top
of
the
front

cover
Make
certam
to
attach
bolts
at
that

locatlon

3

Insert
woodruff

key
into
crankshaft
and
slide

crankshaft

pulley
onto
crankshaft

4
Install
crankshaft
bolt
and
washer
then

torque
as

per
the

speclficatlon
table

5
Coat
water

pump
gasket
on
both
sides
With

gasket
compound
and
mount
the
water

pump
to

the
front
cover
as
shown

m

Figure
67

Oil

Pump
Installation

1
With
No
1

cyhnder
at

top
dead
center
on
Its

compressIOn
stroke
mstall
the

packing
for
the

Oll

pump
and
distnbutor
dnve

spmdle
mto
the

front
cover

2
Install
the
Oll

pump
and
distnbutor
drive

spmdle
Refer
to

Figure
68
and
make
certain

that
the
dnve

spmdle

top
IS
located

m
the
11
25
@

a
m

position
The
smaller

portion
of
the

spmdle

should
be
toward
the
front
of
the

engme

Fuel

Pomp
Water
Inlet
Elbow
lbermostat

Housing
and
Water
Outlet
Elbow
InstliJIation

1
Install
the
fuel

pump
with
associated

gasket

2
Install
the
water
mlet
elbow
front
thermo

stat

housmg
thermostat
and
water
outlet
elbow

along
With
associated

gaskets

3
Bolt
the
front
and
rear

hftmg
eyes
to
the

right

front
and
left

rear
of
the

cyhnder
block

4
Install

gasket
and
front

cover
on
the
front
of

the
head

Oil
Strainer
and
Oil
Pan
Installation

1
Mount
the
011
stramer
With

gasket
to
the
bot

tom
of
the

cyhnder
block

Torque
to

specifica

tion

94
CHAPTER
NINE

clutch
WIthdraw
the

overrunnmg
clutch
assem

bly
from
the
armature
shaft
as
shown
m

Figure
8

C
J

oeo
CD

7
Remove
the
brushes
shown
m

Figure
9

by

unsoldenng
wIth
a

soldenng
Iron

Figure
10

shows
the
brush
holder
after

removal

CD

@
8

Figure
11
shows
the
starter
motor
after
dIS

assembly

@

O

oIlA

@

O@I
coO
o

r

CLEANING
INSPECI10N
AND
REPAIR

Clean
all
dISassembled

parts
thoroughly
Do

NOT
use

grease
dISsolVIng
solvents
on
the

over

runnmg
clutch
armature

assembly

magnetIc

sWItch

assembly
ot
field
colis
SInce
It
would

dIssolve

grease
packed
In
the
clutch
mechanISm

and

damage
the
cOIls
or
other
msulators
Check

all

parts
carefully
for

damage
or
wear

Replace

as

reqwred

TERMINALS

Check
all
electrIcal
termInals
and

WIres
for

SIgnS
of

damage
wear
and
detenoratIon
Re

place
as

reqUIred

FIELD
COIL

1
Check
InsulatIon
on
the
field
coll
If

damaged

or
worn

replace
the

coll

2
Test
the
field
coll
for

contlnulty
after
refer

rmg
to

Figure
12
Connect
the

test

probe
of
a

Clrcwt
tester
or
an
ohmmeter
t
the
field

coll

pOSItIve
termInal
Connect
the
other

probe
to
the

pOSItIve
brush
holder
If
the
tester
shows
no
con

ductIon
the
field
cirCUIt
or
coll
IS

open
and

should
be

replaced

3
To
test
for

groundmg

place
one

probe
on

the

yoke
and
the
other

on
the

pOSItIve
termmal

of
the
field
co1l1ead

Figure
13
shows
thIS
test

bemg
performed
If

very
lIttle
reSIstance
IS
read

the
field
colis

are

grounded
and
must
be
re

placed

ENGINE
ELECI
RlCAL
SYSTEM
9S

@

@

4
Test
the
COIls
for
shorts

by
unsoldermg
the

connectIons
of
each
coIl
and

repeatlng
the
test

given
m

step
3
If

a
defectIve
coil
IS
found
It

must
be

replaced

BRUSHES
AND
BRUSH
LEAD
WIRE

1
Check
condItIon
of
the
brush
contact
surface

and

general
wear
of
the
brush
If
the
brush
is

worn
to
under
02362
In

60mm
m

length

replace
It

Inspect
all
connectIons

carefully
for

looseness

or
cracks

Replace
or

reparr
as
re

qUIred

2
Check
the
connectIon
of
the
lead

clIp
and

WIre

3
Check
brush
holders
and

sprmg
clIps
for

damage
Replace
1f

they
will
not
hold
the
brushes

agaInst
the
commutator

properly
Clean
all

brushes
aIld
brush
holders

thoroughly

4
Check
brush

sprmg
tenSIon
WIth
a

spnng

scale
as
shown
m

Figure
14
The

reading
should

be
1
76
Ibs
0
8

kg
Replace
the

spnng
if
the

tenSIon
IS
under
1
54
Ibs
0
7

kg
@

ARMATURE
ASSEMBLY

1
Check
external

appearance
of
the
armature

and
commutator

2
Use
a

dIal

gauge
Figure
15
to
measure
the

armature
shaft
for
bend

Replace
the
armature

shaft
1f
the
bend
exceeds
0
001
in
0
08mm

@

3

Inspect
the
commutator
If
the
surface
IS

rough
sand

It
With
No
500

emery
paper
untIl

smooth
Use
a
dIal

gauge
to
check
the

commu

tator
If
out
of
round

IS
more
than
00079

In

0
2mm
or
the

depth
of
the

Insulatlng
mica
is

less
than
0
0079
In
0
2mm
from
the
commu

tator
surface
the
commutator
should
be
turned

on
a
lathe
Out
of
round
should
be
less
than

o
0020
in
0
05mm

Insulatmg
mica

should
be

undercut
as
shown

m

Figure
16

to
a

depth
of

from
0
0197
to
0
0315
in

0
5
to
0
8mm

4

Inspect
the

soldered
connectIon
of
the

arma

ture
lead
and
the
commutator
If
the
connection

is
loose
resolder
It

5

Usmg
a
clrcmt
tester
test
the
armature
for

ENGINE
ELECI
RlCAL
SYSTEM
97

No
Load
Lock

Torque
Test

1
Connect
the
starter
motor
in
series
with

a

12
volt

battery
and
antmeter
as
shown
in

Figure

19
The
antmeter
should
be

capable
of

mdIcatIng

1
000

amps

@
Switch

Voltmeter
Ammeter

2
Use

torque
testlng
equipment
to
determine

the

torque
the
motor

develops

3
Connect
a
voltmeter
and
a
vanable
resistor

WhICh
IS
used
to

regulate
the

voltage
Into
the

circwt

4
Close
the
sWitch

and

regulate
the

voltage
as

reqUIred
Figure
20

proVIdes

power
voltage

amperage
and

torque
mformatIon

that
1f
fol

lowed
will
mdIcate
the
condItion
of
the
starter

motor

Power
kw

Voltage
v

@

Test

Diagnosis

1
Low

speed
with

high
current
draw

might
re

sult
from

tIght
dirty
or
worn

bearings
bent

armatlIre
shaft
loose
field
call
or
a
shorted

armatlIre

2
Fatlure
to

operate
With

htgh
current
draw

may
result
from
a

gromlded
or

open
field
coil
a
defectIve
armature
coll
or
a
burned

out
com

mutator
bar

3
Low

torque
low
current
draw
and

low

speed

would
be
caused

by
hIgh
Internal
reSIStance
due

to
loose
connectIons

dirty
commutator
defec

tIve
leads
and

a
burned
out
commutator
bar

4

HIgh
speed
With
low

torque
would
be
caused

by
a

grounded
field
coll

Magnetic
Switch

Assembly
Test

H
the
above
tests
are

satIsfactory
check
the

magnetIc
SWitch

assembly
as
follows

1
Connect

Jumper
cables
between
the

negative

battery
tennmal
and
the
starter
motor
M
term

inal

as
shown
In

Figure
21
Also
connect
the

positIve
battery
terminal
to
the
S
terminal
and

place
a
SWitch
m
senes
in
the
CIrCuit

@
Ignition
switch

9

I

i
j

Battery
Starter
motor

rr

2
Close
the
SWitch
and
measure
the

dimension

given
m

Figure
22
The
dimensIon
should
be
as

specIfied

o
0591m

15mm

ENGINE
ELECTRICAL

SYSTEM

103

2
Check
the
lead

Wires
of
the
armature
coil

Includmg
the

neutral
wire

for

ground
as
shown

In

Figure
42

HIgh
reSIStance
no
current
flow

indicates

gqod
condItion

If

not
the
stator
must

be

replaced

DIODE

INSPECTION

The
diodes
can
be

inspected
through
the
use

of
a

lamp
and

battery
or
with

a
tester
The

lamp

and

battery
test
can
be
made
Without

disassembl

ing
the
alternator
wh1le
the

tester
should
be
used

when
the
dIodes

are

dIrectly
acceSSIble

1
Positive
Dwde
Test
Connect

the

battery

negative
terrmnal
WIth
the

connector
A
terrmnal

WhIte
and
the

battery

pOSItIve
terminal
With

the
connector
N

terrmnal

yellow
as
shown

m

Figure
43
The

lamp
m
the
circuit
should

hght

@

Reverse
the
connection
as

shown
m

Figure
44

If
the

lamp
does
not

hght
the

pOSItIve
diodes

are

satisfactory
If
the

lamp
does

light
one
or

all
of

the

pOSItIve
dIodes

are
defective
and
must

be

replaced
@

Qg

2

Negative
DIOde
Test

Connect
the

battery

negatIve
termmal
to

the
connector
N
terrmnal

yellow
and
the

battery

pOSItIve
termInal
to
the

connector
E
termmal

black
The

lamp
m
the

CIrcUit
should

lIght
Reverse

the
connectIons
If

the

lamp
does

not

lIght
the

nega1
ve
dIodes
are

satlsfactory
If
the

lamp
does

lIght
one

or
all

I

of
the

negatIve
dIodes

are
defectIve
and
must
be

replaced

To
test
the

indiVIdual
dIodes
With
a
tester

proceed
as
follows

1
There

are
two
kInds
of
diodes
as
shown
m

Figure
45
Check
dlOd
reSIstance

usmg
a
tester

In
both
dIrectIons

as

jl
own
in

Figure
46

f

Current
flow
@

Current
flow

re

ack

flgUre

e

terminal

r

Positive
diode

Negative
diode

@