CO- 1 2
COOLING SYSTEM
-
Thermostat Radiator
I N S TALLATION O F T H E R M OS TAT
1.
PLACE THERMOSTAT I N WATER IN LET
2. I N STALL WATER OUTLET
(al
Install
a new gasket and the water oullet with t h e
three bolls.
Torq u e : 1 85 kg-em ( 1 3 fHb. 1 8 N - m )
( b ) Secure t h e w a t e r by-pass p i p e o f turbocharger will)
the bolt. (See page
E M - 7 5 )
3 . CONNECT RADIATOR I N L ET HOSE
4. F I L L WITH ENGINE COOLANT (See page CO·3)
5 . START E N G I N E A N D CHECK F O R LEAKS
R A D I AT O R
CLE A N I N G O F R A D IATOR
U s i n g water or a steam cleaner. remove any mud and d i rt
from the radialor core.
CAUTION : If using
8
high pressure type c leaner, be
careful not to deform the fins of the radiator core. If
the cleaner nozzle pressure is 30 - 3 5 kg/cm2 (427 -
498 psi. 2,942- 3,432 k P a ) . keep
a
distance of at least
40
- SO
e m
(1 5.75
-
, 9.69 i n J
between the radiator
core and cleaner nozzle.
I N S PECTION O F RADIATO R
1 . INSPECT RADIATOR CAP
Using
a
radiator cap tester, pump the t e s t e r and measure
the
relief
valve opening pressure.
S t andard opening pressure :
0.75 - 1 .0 5 kg/cm�
( 1 0 . 7 - 1 4.9 psi, 74 - 103
kPal
Minimum opening pressure:
0 . 6
kglcm� (S.5 psi, 59
kPal
If
t h e
o p e n i n g pressure is
less
than m i n i m u m . replace t h e
radiator cap.
2.
I N SPECT COOLING SYSTEM FOR L E A K S
(a)
F
il
l the
radialor w i t h c o o l a n l a n d a t t a c h
a
p ressure
tesler.
(b)
Warm up the engine.
Ie)
Pump it to
1 . 2
kg/cm:l(l
7.1
psi.
1 1 8
kPa), check that
presure does
not
drop.
U t
h
e
pressure drops, check for leaks from
the hoses.
radiator or
water pump.
\ I
no
external l
e
aks
are found,
check the
healer
c..)re, cylinder block and head