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2 4.236 Series
Cylinder head torque sequence
Cautlon:
Thts operatian must be done by a peßon
with the cailect
taning.
ll in doubt reler to ne
wotkshop
manual.
l l r s r m p o d a n l l h a l t h e s l u d s a n d t h e t h r e e d i t t e r e n t
englhs of selscrews
are lilted in thetr corecl
p o s t o n s
C h o o s e t h e c o t r e c l m e t h b d a n d l o r q u e f r o m l h e
l a b l e b e l o w
Method
1
1 Lightly lubricale the threads of the cylinder head
l a s l e n e ß ,
2 Gradually and eventy tighten lhe fasteners to ihe
correcl lorque and method shown in lhe lable
opposite. Tighten the lasteners
in lhe co(ect
s e q u e n c e ( A o r B ) .
3 S l a d a n d r u n t h e e n g i n e u n t i t i t r e a c h e s n o r m a l
lemperalure
ol operation. Stop the engine.
4 Remove lhe rocker shaft and remove lhe
alomrsers, lh€n lighlen the lasteners again lo lhe
cotrect lorque in the correcl sequence.
It a lastener moves when checked, tighien il to the
correcl totque.
It a fastener does nol move when checked,
loosen il
1 / 1 2 t o 1 / 6 ( 3 0 ' l o 6 0 " ) o l a t u r n t h e n t i g h t e n i t t o t h e
correcr torque.
5 C h e c k t h e f i r s t 1 0 p o s i t i o n s a g a i n , d u n n g t h i s
check do nol loosen lhe fasleners_
6 The fasteners of all engines except the 4.2482
must be tightened again atter lhe tirst 25150 hours
u s e .
F a s t e n e r
l y p e
l e n g l h m m I n )
l l l u s l r a l r o n
a n 0 p o s ü o n
Stud
A 1 9 . 2 2
Selscrew
S m a l
a 5 , 6 , 1 1 , 1 2 , 1 6 ,
1 7
Selscrew
M e d i u m
a
1 , 2 , 3 . 4 , 7 , A , 9 .
1 0 , 1 3 , 1 4 , 1 5 , 2 0
Setscrew
L a r q e
a
1 8 . 2 1
l
q
8
2
1
3
1 9 -
9
ö
r
?
s
Q
r a
?
.
.
o
i
2
0
1
0
7
4
r
c
4 2 1 2 2 c 1 1 1 2 . 6 ' S . 1 7 . 1 6 .
a
a
a
a
a
a
a
a
type
l e f q t h m m ( n )
l l u s l r a l o n
a n C p o s i l o n
S l u d
B 1 6 , 2
Selscrew
S m a l
B 3 , 5 , 7 , 1 0 , 1 5
S e t s c r e w
M e d i u m
B 1 , 2 , 4 , 6 , 8 , 9 ,
1 1 , 1 2 , 1 3 , 1 4 ,
1 f . 2 0
Selscrew
Larqe
B 1 4 , 1 9
E n g i n e
type
Torque
Torque
N M
bt fl
Kgl m
1.236
)nglnes w[h nuts on y
rp lo u550185W
rom U550185W
1
1
2
8 1
r 3 6
120
60
1 0 0
88
8 , 3
1 3 , 8
1 1 , 8
r.4236
rp lo engine U027774V
rom enorne U027774M
l
2
1 3 6
120
1 0 0
8 8
1 3 , 8
1 i , 8
1.24A and 4.2492
rp lo engine U573000
rom enqine 1J573000
1
2
1 3 6
120
1 0 0 1 3 , 8
1 1 4
Perkins Seruice Data Booklet pad 1 1997
-re
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