Volvo D 20 Service Manual page 102

Group 21 Engine
Crankshaft f ro nt sea I, repl acement
R 1 6
lnstall lower timing gear cover and vibration
Dampercan only befiitedinoneway. Pin on crankshaft
gear must fit in vibralion damper.
Torque inhex bo ts ro 20 Nm 115 ft lbs).
R 1 7
lnstall center bolt
S m e a r t h r e a d s a n d m a t i n g s u r f a c e w i t h s e a l e r P / N
277961 9.
U s e w r e n c h 5 1 8 7 ( r e s t o n c o o l i n s f a n b e a r i n g ) t o h o l d
U s e w r e n c h 5 1 8 8 t o l o r q u e c e n t e r b o l l t o 3 5 0 N m
{ 2 5 5 f t l b s ) .
l m p o r t a n t r T o r q u e 3 5 0 N m a p p l i e s o n l y i f w r e n c h 5 1 8 8
i s u s e d . A l s o t o r q u e w r e n c h m u s t b e i n l i n e w i t h w r e n c h
5 1 8 8 _
R 1 8
Set belt tension
T u r n e n g i n e a p p r o x 1 / 4 t u r n a n t i c l o c k w i s e . A d j u s t t e n
s i o n b y m o v i n g c o o l a n t p u m p .
U s e g a u g e 5 1 9 7 t o c h e c k t e n s i o n . A t t a c h g a u g e t o b e l t
a n d s e t t o 1 2 . 5 u n i t s .
D e p r e s s b e h s t r o n g l y w i t h h a n d a n d r e c h e c k / a d j u s n e n
R 1 9
l n s t a l l :
- f r o n t t i m i n g g e a r c o v e r
c o o i n g i a n w i t h s p a c e r a n d p u l l e y : T o r q u e b o l t s i o
I N m ( 6 . 5 f t l b s )
- b e l t f o f p o w e . s t e e r i n g p u n r p a n d f a n b e t s
- r a d i a t o r . C o n n e c t h o s e s
s p l a s h g u a r d
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