Toyota 2H Repair Manual page 239

CO - 1 2
-
C O O L I N G S Y S T E M
I N S TA L L A T I O N O F T H E R M O S TAT
1. PLACE T H E R M O STAT I N WATER I N L E T
2 . I N S TALL W A T E R O U T L E T
Install
(al
Torq u e :
( b )
3 . C O N N E C T R A D I A T O R I N L E T H O S E
4 . F I L L W I T H E N G I N E C O O L A N T (See page C O · 3 )
5 . S T A R T E N G I N E A N D C H E C K F O R L E A K S
R A D I AT O R
CLE A N I N G O F R A D IATOR
U s i n g w a t e r or a s t e a m c l e a ner. remove a n y m u d a n d d i rt
f r o m the r a d i a l o r core.
C A U T I O N :
c a r e f u l n o t to d e f o r m the f i n s of the r a d i a to r c o r e . I f
the c l e a n e r n o z z l e pressure is 3 0 - 3 5 kg/cm2 ( 4 2 7 -
- SO
498 p s i . 2 , 9 4 2 - 3,432 k P a ) . keep
40
core and c l e a n e r nozzle.
I N S P E C T I O N O F R A D I ATO R
1 . I N S P E C T RADIATOR C A P
relief
U s i n g
t h e
S t a ndard opening pressure :
M i n i m u m opening press u r e :
I f t h e
r a d i a t o r cap.
I N S PECT COOLING SYSTEM FOR L E A K S
2 .
(a )
(b)
Ie)
U t
radiator o r
h
check the
T h e r m o s t a t R a d i a t o r
a new gasket and t h e w a t e r o u l l e t w i t h t h e
t h r e e b o l l s .
1 8 5 k g - e m ( 1 3 fHb. 1 8 N - m )
Secure t h e w a t e r b y - p a s s p i p e o f turbocharger w i l l)
the b o l t . (See page E M - 7 5 )
8
If u s i n g high pressure type c leaner, b e
-
e m
( 1 5 . 7 5 , 9 . 6 9 i n J b e t w e e n the r a d iator
a
radiator c a p tester, p u m p t h e t e s t e r and m e a s u re
valve o p e n i n g pressure.
0.75 - 1 . 0 5 kg/cm�
( 1 0 . 7 - 1 4 . 9 psi, 74 - 103
0 . 6 k g l c m � ( S . 5 p s i , 59
l e s s
o p e n i n g pres s u re i s
F l t h e
il r a d i a l o r w i t h c o o l a n l a n d a t t a c h
tesler.
kg/cm:l(l
Warm up t h e e n g i n e .
not
1 . 2
P u m p i t to
e
presure does d r o p .
\ I
pressure d r o p s , c h e c k f o r l e a k s f r o m
n o
water p u m p .
c..)re, c y l i nder b l o c k a n d head
healer
a
d i s tance o f a t l e a s t
kPal
k P a l
t h a n m i n i m u m . replace t h e
a
p re s s u re
7 . 1 1 1 8
p s i . k P a ) , c h e c k t h a t
the hoses.
exter n a l l aks
e a r e found,