1977 DATSUN PICK-UP oil

AC506

Fig
AC

59

Grounding
point

of
coil

5

If
clutch

assembly
must
lie
re

placed
remember
that

break
in

opera

tion
is

necessary
The
break
in

opera

tion

consists
of

engaging
and

disengag

ing
the

clutch

some

tirty
times

SHAFT

SEAL

ASSEMBLY

The

shaft
seal

assembley
of

this

compressor
is
of
a

simplified
design

yet
tight

sealing
and

long
lasting

REMOVAL

It
is

recommended
that
the

com

pressor
be
removed

from
the

vehicle

for

shaft
seal

replacement

I
Remove

oil
filler

plug
with
D

ring

and
drain

the

compressor
oil

Fig
AC

60

Removing
filler
plug

2
Remove

clutch
Refer
to

Com

pressor
Clutch

Removal

3

Remove

shaft

key
Air

Conditioning

jpL

Y
L

I
i
0

I
I

0

Ace07

Fig
AC
61

Removing
s
wft

key

4

Remove
seal

plate

AC80e

Fig
AC

62

Removing
seal

plate

5

With
the

Compressor
Seal

Puller

pull
out

seal

gland
and
discard

Notes

a

Discard
all

parts
of
the
seal

includ

ing
the
O

ring

b
Do

not
use
a

screwdriver
to

pry

shaft
seal
from
shaft

as

damage
to

shaft

may
result

AC809

Fig
A
C

63
Removing
s
wft
eal

INSTALLATION

1
Clean

shaft
and
seal

cavity
with

clean

lint
free
cloth

2

Dip
seal

gland
in

clean

refrigerant

oil

AC
36
3

Push
seal

assembly

except
carbon

ring
over
end
of
shaft
with

carbon

ring
retainer

facing
out

4
Move

seal

assembly
into

position

on
shaft

1

I

Fig
AC
64

Inserting
wft
al

ass

mbly

5

Place
carbon

ring
in

ring
retainer

so
lapped
surface
is

facing
outward

Note

The
indentions
in
outside

edge

of
carbon

ring
must

engage

driving

lugs
and
be

firmly
seated
in

re

tainer

6
Install
new
D

ring
in

groove
of

seal

plate

Note

Use

refrigeration
oil
to

make
it

adhere
to
surface

7

Space
seal

plate
with

equal
clear

ance
around

shaft
and

insert

cap

screws

8

Tighten
these

screws

evenly

Tightening

torque

Seal

plate
securing

cap
screws

0
7
to
1

0

kg
m

5
to
7
ft

Ib

AC811

Fig
AC
65

8p
cing
01

plate
and

tightening
cap
screws

9

Install

clutch
Refer
to
Com

pressor
Clutch
Installation

INSPECTION

Check
for

gas
leakage
as
follows

I

Plug
high
and
low

pressure
joints

on

compressor
with
blind

caps

2

Connect

charging
hoses
in
lines

between
manifold

gauge
and

high
and

low

pressure
service
valves

Connect

refrigerant
can

to
middle

hose
of

manifold

gauge

3

Open
valve
of
can

tap
and

charge

refrigerant
Loosen
oil
filler

plug
at

side
of

compressor
to

purge
air
out
of

compressor

4
Turn
shaft
5

or
6

turns
Then

confirm
that

pressure
does

not

decrease
on

low

pressure
gauge
If

gauge
indicates
a

pressure
decrease

there
is
a
leak

Conduct
a
leak
test

Under
such
a

condition
remove
and

then

install

parts
again

CYLINDER
HEAD

AND
VALVES

Insufficient

refrigerant
compression

is

likely
to
be
caused

by

damaged
head

gasket
or

damaged
valves

Prior

to

servicing
the
head
and
valve

plate
both
service

valves
should
be

opened
to
free

any
gas

pressure
which

may
be
in

the

compressor

REMOVAL

I

Remove
the
bolts

from

flanged

type
service

valves

using
Torx
Driver

Bit

Note
The
direction
of

flanged
type

service
valves

should
be
noted
for

reinstallation

AC812

Fig
AC
66

Removing
service
valves

2
Remove
the

remaining
bolts
in

the
head
Air

Conditioning

AC813

Fig
A
C
6
7
Removing

cylinder
head

bolts

3
Remove

valve

plate
and
head

from

cylinder
by
prying
or

tapping

under
the
ears
which
extend
from

valve

plate

If
head
and
valve

plate
adhere
hold

head
and

tap
valve

plate
ears

away

from

head
with
a

soft
hammer

Note
Do

not
hit
or

tap
head
to

separate
head
and
valve

plate
be

3use

damage
to
head

may
result

Fig
AC
68
Removing
valve

plate

and
head

4
When

removing
the

gaskets
use
a

sharp
edged
knife

Notes

a
In

removing
head

gasket
be

very

careful
not
to

damage
machined

sealing
surface

b
Do

not
reuse

gaskets

AC815

Fig
A
C
69
Removing
gasket

AC37
INSTALLATION

Valves
and
valve

plates
are
furnish

ed

only
as
a

complete
assembly

I

Apply
a
thin

film
of
clean

refrig

eration

oil
on
area
of
crankcase
to
be

covered

by
cylinder
gasket

2
Place

cylinder
gasket
in

position

on

cylinder
so
dowel

pins
in
crankcase

go
through
dowel

pin
holes
in

cylinder

gasket

3

Apply
a
thin

film
of
clean

refrig

eration

oil
to

top
and
bottom
valve

plate
areas
to
be
covered

by
gaskets

AC816

Fig
A
C
70
Applying
clean

refrigeration
oil

4
Place
valve

plate
in

position
on

cylinder

gasket
so

discharge
valve
as

semblies
i

e
smaller
diameter
assem

blies
with
restrainer

over
valve
reed

are

facing
up
and

locating
dowel

pins

go
through
dowel

pin
holes
in
valve

plate

Fig
A
C
71
Placing
valve

plate

5
Place
head

gasket
in

position
on

valve

plate
so
dowel

pins
go
through

dowel

pin
holes
in

gasket

6

Apply
a
thin
film
of
clean

refrig

eration

oil
on
the
machined
surface
of

cylinder
head
which

matches
head

gasket

7

Place
head
on

cylinder
head

gasket
so
dowel

pins
go
into
dowel

pin

holes
in

head
Air

Conditioning

8

Apply
a

thin
fihn
of
clean

refrig

eration
oil

to
service

valve

flanges

9
Place

flange
valve
O

ring
in

posi

tion

on

cylinder
head

10
Place
service
valves
in

position

on

proper
service
valve

ports
suction

or

discharge
and
insert

two

longer

screws

through
service
valve

mountiing

pads
head
valve

plate
and

into
crank

AC
38
case

11

Insert

remammg
head

screws

and

run
in

all
screws
until
the

heads

make

contact

Tightening
torque

Head
and

service
valve

screws

2
1

to
3
2

kg
m

15
to
23

ft
lb

Air

Conditioning

Tool
number

For
Reference

No
Description

use

page
or

Remarks

tool
name

Unit
mm
in
on

Figure
No

5
Clutch

To
hold
clutch

wheel
when

removing
clurch

wheel
620

Fig
AC
51

124878
1

spanner
wrench

6
Clutch

removing

bolt

7

Compressor
seal

puller

8

Torx
driver
bit

9

Oil

dip
stick
To

remove
V

pulley
from
crankshaft

To

remove
shaft
seal
from

crankshaft

To
remove

flange
bolts

To

inspect
oil
level

AC
40
BE440

BE441

BE442

B

E443

BE434
620

620

620

620
Fig
AC
52
126344

Fig
AC
63
J

10549

Fig
AC
66
124392

110545

Service

Equipment

TOOL
LIST

ENGINE
TOOL

Tool
Number
Tool
Name

Newly
added
Class
Remarks

ST050
I

SODa

Engine
stand

assembly
5
FIO
B2iO
610
710

S30

tST05011000
Engine
stand

ST050
I

2000
Base

ST05260001

Engine
attachment
5
610
710

STlOl20000

Cylinder
head
bolt
wrench
2

610
710
S30

STl
0640001
Pivot

adjuster
I
610
710
S30

KVIOI039S0

Valve
guide
reamer
set
3
FiO

B210
610
710

S30

STl1081
000
Reamer
12
2
mffi
0
480
in

dia

J

STl1032000
Reamer
8
0
mffi

0
315
in
dia

STl1320000
Drift

STll650001
Valve
seat
cutter
set
2

610
710
S30

STl2070000
Valve
lifter
5

B210
610
710

S30

STl3030001
Piston

pin
press
stand
2
610
710

S30

STl53
10000
Crankshaft
rear

oil
seal
drift
2
610
710
S30

KVI01041S0
Crankshaft
main

bearing
cap
puller
2

610
710

S30

KVIOI04110
Crankshaft
main

bearing
puller

STl6512001

Adapter

STl6701001
Adapter

STl6610001
Pilot

bushing
puller
3
610
710
S30

STl7420001
Chain

stopper
2
610
710
S30

STl9320000
Oil
filter
wrench
FIO

B210
610
710

S30

STl9870000
Air

pump
test

gauge
FI0
B210
610
710

STl98
10000

Hexagonal
wrench
3
FIO
B2iO
610
710

STl9890000
Rotor

adapter
2

FIO
B210
610
710

STl9900000

Dummy
shaft
2
FIO
B210
610

710

STl99
10000

Bearing
drift
2
FIO
B210
610
710

STl9920000
Rotor
stand
2

FIO
B210
610
710

STl9930000

Bearing
adapter
2
FIO

B210
610
710

ST
I

9940000

Bearing
pressing
tool
3
FIO
B210
610
710

EM03470000
Piston

ring
compressor
2
FIO
B210
610
710

S30

SE
3

Service

Equipment

Applied
Ser
77
620NA

Newly

No
Tool
Number
Tool

Name
vehicle
Class
Remarks

added

or

unit
KVOO
102000

ST31970000
Collar
All
X
2

610

ST30611000
Drive

pinion
outer
race
drift
bar
All
X
2

610

ST30613000
Drive
pinion
outer
race
drift

adapter
All
X
2

610

ST3062
1000
Drive

pinion
outer
race
drift

adapter
All
X
2

610

KV311
00300
Solid

punch
All
X
2

610
710
S30

ST3127S000
Preload

gauge
All
X
2
B21O
610
710
S30

KV381025S0
Oil
seal

fitting
tool
All
X
2
610

4

Front
axle

ST35380000
Kingpin
bushing
drift
All
X
2

HT56802000

Kingpin
bushing
reamer
All
X
2

ST36070000
Transverse
link

bushing
replacer
All
X
2

ST35390000
Kingpin

grease
seal
drift
All
X
2

5

Rear
axle

ST38020000

Bearing
lock
nut
wrench
All
X
2

KV40101000
Rear

axle
stand
All
X
2
B210

610
710
S30

ST36230000

Sliding
hammer
All
X
5

B210
610
710
S30

HT72480000
Rear

axle
shaft

bearing
puller
All
X
2

B210
610
710
S30

6

Steering

ST2902000
I
Pitman

arm

puller
All
X
2

B210
610
710
S30

ST27
180001

Steering
wheel

puller
All
X
2
FIO
B210
610
710

S30

HT72520000
Ball

joint
remover
All

X
2
FIO
B210
610
710

S30

ST3127S000
Preload

gauge
All
X
FlO
B210
610
710

S30

7

Brake

GG943
10000
Brake

pipe
torque
wrench
All
X
2

B210
610
710
S30

ST08060000
Master
Vac
oil
seal
retainer
drift
All
X
3

B210
610
710
S30

ST08080000
Master
Vac
wrench
All
X
3
B210
610
710
S30

SE
5

Service

Equipment

AUTOMATIC
TRANSMISSION
TOOL

Applied
Set
3N71B

Newly

Tool
Number
Tool

Name
vehicle

Class
Remarks

added

or
unit

KVOOlO1OOO

ST07870000
Transmission

case
stand
All
X
3

ST2505S001
Oil

pressure
gauge
set

All
X
I

ST25
I

60000

Torque
driver
All
X
3

ST2532000l

Snap
ring
remover
All
X
3

ST25420001
Clutch

spring
compressor
All

X
3

ST25490000
Socket
extension

All
X
3

ST2557000l
Hex

head
extension

All
X
3

8210
610
710
S30

ST25580000
Oil

pump

assembling
gauge
All
X
3

ST25850000

Sliding
hammers

All
X
3

GG930
I

0000

Torque
wrench

All
X

3

HT6
I
000800

Hexagon
wrench

All
X
3

HT62350000

Spinner
handle
All
X

6

HT69860000

Snap
ring
remover
All
X
3

SE
6

T

h
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