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2 v8.sqo series
Cylinder head torque sequence
Cautlon: This operaron must be done by a person
wlh lhe cotrect taining. lf in doubt refer to the
[ /s rmpodanl that the studs and the three d]iterent
lengths ot selscrews are titted n their cotrect
positions
1 L r g h l l y l u b r c a t e l h e l h r e a d s o l l h e s t u d s a n d l h e
c y l n d e r h e a d s e l s c r e w s a n d l h e l h r u s l l a c e s o f l h e
2 G r a d u a l y a n d e v e n t y l i g h l e n t h e s e t s c r e w s a n o
n u s o l e a c h b a n k l o t h e c o t r e c t l o r q u e , i n l h e
s e q u e n c e 1 A ) T r g h t e n a g a n a I t h e s e t s c r e w s a n d
n u t s t o l h e c o r r e c l l o r q u e i n t h e s e q u e n c e ( A ) .
3 F u n l h e e n g t n e u n t t l t r e a c h e s n o r m a l
I e m p e r a t u r e o t o p e r a t i o n . S t o p t h e e n g n e T i g h t e n
a g a n a l t h e s e t s c r e w s a n d n u l s o l e a c h b a n k l o l h e
c o t r e c l l o r q u e , I n t h e s e q u e n c e 1 A ) .
'..aia
.10) i )iC21
. 1 4 . 1 1 8
Note: Release the cylinder head selscrews
evenly
a n d g r a d u a l l y t n t h e r e v e r s e s e q u e n c e t o t h a r s n o w n
i n i A ) .
type
e n g t h m m ( n )
lllusfation
and Posil on
Stud
A 1 6 , 1 8
S e l s c r e w
S m a l l
a 2 , 4 , 6 , 8 , 1 2 , 1 4 ,
S e l s c r e w
N,ledrum
a
3 , 5 , 7 , 9 , 1 3 , 1 5 ,
1 7 . 1 9
Setscrew
Laroe
a
1 , 1 0 . 1 1 . 2 0 . 2 1
E n g r n e a n d
T a s l e n e f l y p e
Torque
N m
bt 1t
kgl m
/8.540
a n g e d i a s t e n e r s
a n g e o t a s l e n e r s , s c a n l s h a n k
e r s c r e w s w t h g a s k e t 3 6 8 1 H 4 0 1
arn tasleners wlh separaie
/ a s h e r s w i l h g a s k e t 3 6 8 1 H 4 0 j
1 6 9
1 8 5
210
125
1 3 5
1 5 5
14,2
1 , 4 7
ry8.s40
a n q e d l a s l e n e r s
214 1 5 5 21.4
2.36
Perkins Service Daia Booktel pan 1, I 997
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