TIMING CHAIN DATSUN PICK-UP 1977 User Guide
Page 91 of 537
DESCRIPTION
COOLANT
LEVEL
DRAINING
AND
FLUSHING
THE
COOLING
SYSTEM
WATER
PUMP
REMOVAL
AND
INSTALLATION
DISASSEMBLY
INSPECTION
AND
ADJUSTMENT
TORQUE
COUPLING
REMOVAL
AND
INSTALLATION
DESCRIPTION
The
cooling
system
is
of
the
con
ventional
pressure
type
A
centrifugal
pump
installed
on
the
timing
chain
cover
serves
to
circulate
the
coolant
The
pressure
type
radiator
filler
cap
installed
on
the
radiator
operates
the
cooling
system
at
higher
than
atmos
pheric
pressure
The
higher
pressure
raises
the
boiling
point
of
the
coolant
and
in
Cooling
System
COOLING
SYSTEM
CONTENTS
CO
2
CO
2
OISASSEMBL
Y
INSPECTION
TEM
COUPLlNG
INSPECTION
THERMOSTAT
REMOVAL
AND
INSTALLATION
INSPECTION
RADIATOR
REMOVAL
AND
INSTALLATION
INSPECTION
CO
2
CO
2
CO
3
CO
3
CO
3
CO
3
CO
4
creases
the
cooling
efficiency
of
the
radiator
When
the
thermostat
is
closed
the
coolant
remains
in
the
cylinder
head
and
block
for
swift
warming
up
of
the
engine
After
it
reaches
normal
oper
ating
temperature
the
coolant
circu
lates
through
the
radiator
The
cooling
fan
drive
is
of
a
coupling
type
COOLANT
LEVEL
The
coolant
level
should
be
check
ed
and
maintained
at
SO
mm
1
97
in
below
the
upper
face
of
filler
neck
when
the
engine
is
cold
C0055
Fig
CO
I
Cooling
ry
lem
Caution
To
avoid
serious
personal
injury
never
remove
I3diator
cap
quickly
when
engine
is
hot
Sudden
release
of
cooling
system
pressure
is
very
dangerous
CO
2
CO
4
CO
4
CO
4
CO
5
CO
5
CO
5
CO
5
CO
5
CO
5
CO
6
If
it
is
necessary
to
remove
radiator
cap
wben
radiator
is
hot
turn
cap
slowly
counterclockwise
to
the
r
step
After
all
pressure
in
the
cool
ing
system
is
released
tom
cap
passing
the
stop
and
remove
it
DRAINING
AND
FLUSHING
THE
COOLING
SYSTEM
To
drain
the
cooling
system
re
move
radiator
cap
release
drain
cock
at
the
bottom
of
radiator
and
drain
plug
on
the
right
side
of
cylinder
block
If
the
heater
system
is
installed
set
heater
temperature
control
valve
to
open
position
After
the
coolant
is
drained
completely
close
drain
cock
and
plug
and
refill
the
system
with
clean
soft
water
WATER
PUMP
The
water
pump
cooling
fan
pulley
and
torque
coupling
are
a
unitized
construction
The
water
pump
is
of
a
centrifugal
type
which
is
mounted
on
the
engine
front
cover