traction control DATSUN B110 1969 Service Repair Manual

GooliDI
Sptem

mechamsm

IS

adopted
to

prevent
the
water

leakage
and
nOIse

completely

Note
The
water

pump
must
not
be

disassembled
since
the

bearings
are

shrmkage
fitted
to
their
bores
If

any
part

of
water

pump
is
found
defective

replace

pump
assembly

Removal

Dram

coolmg
water

completely

Take
the
fan
belt
ofT
the

pulley

Remove
fan
and

pulley

Remove
the
water

pump

Installation

InstallatIOn

IS
the
reverse
of
removal

THERMOSTAT

A

pellet
type
thermostat
IS
used
m
the
water

outlet

passage
to
control
the
flow
of
coolant

provldmg
fast

engme
warm

up
and

regulatmg

coolant

temperature
A
wax

pellet
m
the
ther

mo
tat

expands
when
heated
and
contracts

when
cooled
The

pellet
IS
connected

through

a

piston
to
a

valve
and
when
the

pellet
IS

heated

pressure
IS
exerted

agamst
a
rubber

dIaphragm
and
the
valve

opens
As
the

pellet

IS
cooled
the
contractIOn
allows
the

sprmg
to

close
the
valve

Removal

Dram

coohng
water

Remove
radiator
hose

Remove
water
outlet
elbow
Then
take
out

the
thermostat

Inspection

To
test
the
thermostat
for

proper
operatmg

temperature
submerg
he
umt
m

a
contamer

of
water
Heat
the
water
and
observe
the
tem

perature

Measure

temperature
when
the
thermostat

valve

Just
starts

rlsmg

If
thermostat
does
not

operate
at
the
above

specIfied
temperatures
It
must

be

replaced
Installation

When

mstalhng
the
thermostat

apply

adheSIve
Three
Bond
to
both
SIdes
of
the

packmg
for

preventIOn
of
water

leakage
In

stall
the
thermostat
m

reverse

sequence
of

removal

USA
Canadd
Olher

coun
t
nes

Valve

opemng

temperature
177
to

r8710
16710

F
183
193
173

Valve
lIft

O
oF
031
203
031
212
031
194

WI

fL
g
0

I
l

1

L
JI
I
I

I

I

a

J
i

o
wa
r
outlet

EI
Thermostat

Fig
109
Thermostat
removal

FIQ
110
Thermostat

inspection

81