1968 DATSUN 510 alternator

104

CHAPTER

NINE

2
When

one
sIde
shows
low
resIstance

and
the

other
shows

high
resIstance
the

dIode
IS
satls

factory
If
both
sIdes
are
low

there
IS
a
short

CIrCUIt
If
both
sIdes
are

hIgh
there

IS
an

open

CIrcUIt
All
diodes
With

open
or
short
ClrC
ts

must
be

replaced

BRUSH

INSPECTION

1

VIsually
check
the
brushes

for

SIgnS
of
wear

or

damage
If

wear
IS

greater
than
the
wear
lIrmt

shown
in

Figure
47

replace
the
brush

2

ChecJ
the
movement
of
the

brush
for
smooth

ness
If

unsmooth
check

and
clean
the
brush

holder

3
To

check

spnng

pressure
place
a
SUItable

block

on
a

platform
scale
and

press
down

the

brush
holder

WIth
the
brush
and

spnng
on
the

block

untIl
the
brush
smks

In
the

holder
to

00394

m

lmm

heIght
from

the
holder
Sub

tract
the

block

weight
from

the

reading
to
derive

the

spnng
pressure
It
should

be
0
77
Ibs
035

kg
If
the

readmg
IS
under
0
44
Ibs
0
2

kg

replace
the

spring
Figure
48
shows
thIS

test

being

performed

ALTERNATOR
OUTPUT

INSPECTION

To
check
alternator

output
remove
the
alter

nator
from
the
vehIcle

and
connect

wumg
as

shown
m

Figure
49

Dq
ve
the
alternator
WIth

a

motor

Through
the
CIrcUItS
shown

m
the
Illustra

tIon

current
flows
from
the

battery
to
the
field

coll
of
the
alternator
RaISe
the

speed
of

the

alternator

slowly
to
the

pOInt
where
no
reverse

flow

eXISts
ThIs

pOInt
should
be
about

2

amps

I
at
1
000

rpm
Increase
the
load

reSIStance
untIl

the
load
current

IS
almost

stopped
and

tlI
rn
off

the
SWItch
RaIse
the
load

current

slowly
and

mcrease
the

speed
of
the

alternator
Observe

that
the

output
current
mcreases
as
the

speed

of
the
alternator

mcreases
If
the

output
is
wlthm

the
above

specmcatIon
at
the

proper

rp
ll
the

alternator

IS

satIsfactory

ALTERNATOR
ASSEMBLY

To
assemble
the
alternator

reverse
the

pro

cedures

given
for

dIsassembly
The
use
of
an

arbor

press
to

mstall
dIodes
and

bearmgs
is

essentIal

so
that

parts
are
not

damaged

VOLTAGE
REGULATOR

The

voltage
regulator
is

mounted
to
the

right

hand

engme
compartment
SIde

wall
and
has
a

removable
cover

Figure
SO
shows
the

regulator

With
the

cover
removed

AdjustIng
the

voltage

regulatpr

reqUIres
special
eqUIpment
not

or

dmanly
avallable
to
the

home
mechanlc
If

trouble
seems
to
be
in
the

regulator
refer
servIce

to
a
Datsun
dealer

or

competent
garage

206
CHAPTER
FIFrEEN

CD
ROOM
lAMP

2

VOLTAGE
REGULATOR

SIDE
MARKER
LAMP

HEAD
LAMP

ALTERNATOR

DISTRIBUTOR

STARTER
MOTOR

IGNITION

COIL
FUEL
TANK
UNIT
COMBINATION
LAMP

LICENCE
lAMP

1

Engme
room
harness

2
Instrument
harness

3

Body
harness

CD

INDEX

A
Inspection
and

repair
191

Air
cleaner
Pad

replacement
190

Exploded
views
63
64
Piston
seal

replacement
193

Removal
and

replacement
62
Reassembly
and
installation
193

Removal
190

Air

pump
40

Brakes
front

pick
up

Alternator

Brushes
104
Adjustment
201

Diode
103
Exploded
View
195

Disassembly
98
ServiCing
194

SpecdicatIons
194
203
204

Exploded
Views
41
99

Brakes
rear

pick
up

Inspection
and

repair
101

Adjustment
202

Output
checks
104

Exploded
View
195

Reassembly
104

Servicing
194

Removal
40
98

Brakes
rear
sedan
and

wagon

Rotor
102

Adjustment
202

Stator
102

Exploded
view
194

Axle
removal

pick
up
175

Inspection
and

repair
193

Reassembly
194

B
Removal
and

disassembly
193

Breaker

points
110

Ball

JOint
lower
sedan
and

wagon
174
Bumpers

Battery
Exploded
view
front

pick
up
223

Inspecllon
aiii
I

servicing
21
Exploded
View
front
sedan
and

wagon
224

SpeCific
gravity
21
Exploded
view
rear
sedan
230

Body
Exploded
view
rear

wagon
231

Body
Irlm
and

bumpers
223
224

Door
lock
and

regulator
225

C

Doors
225

Hood
lock
control
225
Camshaft

Seats
228

DeSCription
34

Tail

gate
228

Exploded
view
37

Trunk
hd
and

bumper
228

Inspection
48

Brake

pedal
Reassembly
54

Inspection
and

repair
187

Sprocket
53

Installation
188

Tlmmg
chain
57

Removal
187
Carburetor

Brakes
Cleaning
and

inspection
75

Adjustment
201
202
Dash

pot
adjustment
71

Bleeding
196

DesCription
37
69

Brake

pedal
187
Disassembly
71

Front
diSC
sedan
and

wagon
190
193

Exploded
Views
74
75

Front
drum

pick
up
194
Fuel
level

adjustment
69

Handbrake
197
201

Idhng
adjustment
69

Master

cyhnder
188
Interlock
valve
70

Rear

pick
up
194

Reassembly
76

Rear

sedan
and

wagon
193
Removal
40
71

SpeCifications
and
service
data
203
204
Sectional
view
69

Troubleshooting
16

Throttle
valve
70

Wheel

cyhnders
pIck
up
196
Charging
system

Brakes
front
diSC
sedan
and

wagon
Troubleshooting
12

Adjustment
201
Choke
and
accelerator

Disassembly
191

Disassembly
and

installation
82

Exploded
view
192

Exploded
view
83

INDEX

237

2

7

30

28
WIrIng
diagrams

WIrIng
harnesses

Electncal

system
engme

Alternator

Chargmg
ClfCUlt

Dlstnbutor

IgmtlOn
coIl

Spark
plugs

Starter

Voltage
regulator

Emission

control
crankcase

DescnptIon

General

mspectIon

SchematIc
vIew

VentIlatIOn

control
valve

EmIssIOn

control
exhaust

AIr

pump

AntI
backfire
valve

Check
valve

DescnptlOn

Engme
modificatIons

system

Exploded
and
schematIc
vIews

Mamtenance
and

testIng

Troubleshootmg

Emission
control

system

evaporatIve

Engme

Camshaft

and

beanngs

Camshaft

sprocket

Component
descnptIons

Componenl

reassembly
and
mstallatIon

CompressIOn

testmg

Connectmg
rod

beanngs

Connectmg
rods

Crankshaft

Crankshaft
and

tImmg
cham

Crankshafl

sprocket

Cylmder
block

CylInder
head

DescnptlOn

Disassembly

Exploded
view

Flywheel

InstallatIOn

LubncatIon

MaIO

bearmgs

PIston

nngs

Pistons
and

connectmg
rods

PiStOns
and

piston
pms

Reassembly

Removal

SectIonal

views

ServIce
data

SpeCificatIons

Troubleshootmg

Valve
rocker

PIvot

Valves

Engme
lubncatlon

DescnptIon
217
222

205
207

98

104

98

105
111

111

112
113

9197

104

122

122

121

38
114

123

115
120

114

15

123

48
54

53

31

38

5759

24

52

51
54

51

57

53

49
55

46
56

31

40

33

53

59

27
30

52

50

45

50
54

53

38

32

60
61

60
61

13

54

47
53
114

114

121

114
LubncatlOn
ClfCUlt

011
filter

011

pump

Engme
tune

up

Checks

miscellaneous

Compression
testIng

DIstributor

Dwell

angle

EqUIpment
usage

ReqUIred
eqUIpment

Spark
plugs

Tlmmg

Tlmmg
dual

pomt
dlstnbutor

Valve
clearances

Exhaust

systems

Exploded
views

InspectIon

InstallatIOn

Removal

pickup

Removal
sedan
and

wagon

F

Fan
clutch

DIsassembly
and

reassembly

OperatIon
and

mspectlon

Flywheel

Fuel

pump

Capacity
test

DescnptlOn

Exploded
views

InspectIOn

InstallatIOn

Reassembly

Removal
an

assembly

StatIc

pressure
test

Fuel
stramer

Fuel

system

Air
cleaner

Carburetor

Fuel

pump

Fuel

stramer

Fuel
tank

Troubleshootmg

Fuel
tank

DescnptIon

Exploded
Views

InspectIOn
and

repaIr

Installation

Removal

sedan

Removal

pick
up

Removal

wagon

Fuses

G

27
General

mformatIon
25

24

21

24

20

20

21

23

24

25

124
126

126

126

126

123

l

89

89

53

68

37
65

66
67

68

58

68

42
68

65

1
2v

62

69

65

68
l

6

7

1
l

76

78
81

82

82

76

82

7
6

2

1

F