Volvo D 20 Service Manual page 86

Group 21 Engine
Camshaft front seal, replacement
0 1 5
Set belt tension
A d j u s l t e n s i o n b y m o v i n g c o o l i n g 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 1 0 b e l t
a n d s e t t o 1 2 . 5 u n i t s .
S t r e t c h b e l t u n t i l m a r k o n g a u g e p l u n g e r i s f l u s h w i t h
Depress beit stongly with hand and rechecuadju st ten-
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o 1 6
Make sure cyl. 1 is ai TDC
Check'o'mark on flywheel and adjust if necessarv
o 1 7
Tighten camshaft front sprocket
L J s e 5 1 9 9 t o p r e v e n t s p r o c k e t f i o m t u r n i n g .
TorqLre center bolr to 45 Nm (33 ft lbs).
o 1 8
Check dial indicator
l f p o i n l e r h a s m o v e d f r o m z e r o p o s i t i o n : b a s i c ' s e t e n '
g i n e a c c o f d i n g t o o p e r a l i o n s C 1 - 2 1 .
Pointer at zeror Proceed to O19.
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