Check Tappets; Check Valve Springs - Volvo D 20 Service Manual

Group 21 Engine
Cylinder head. cleaning - inspection
Check tappets
P ace tappets in cylinder head
Check fit and clearance.
Clearance, newparts 0.025-0.075
mm (0.001 0.003in)
8trre
Check valve springs
lin)
(1.334)
( 1 . 1 2 6 )
(0.720)
Length
33.9
28_6
1 8 . 3
0
61 17
209-231
0
I67-185
433 479
{lbs)
l 0 )
{ 1 5 1 7 . 5 )
t41 52.2)
{lbs)
(0)
l3v42l
(98-108.3)
Outer springs
Length
40.2
32.6
22.3
(in)
(1.583)
(1.283)
(0.878)
Replacing valve guides
Operations F 6-8
F6
Press out valve guide
U s e d r i f t 5 2 1 8 . P r e s s f r o m c o m b u s t i o n c h a m b e r s i d e .
Ptess in new valve guide
L u b r i c a t e v a l v e g u i d e .
l j s e d r i f t 5 2 1 8 . P r e s s i n f r o m c a m s h a f t s i d e .
P r e s s i n g u i d e u n t i l f l a n g e o n g u i d e c o n t a c t s c y l i n d e r
h e a d . I n t h i s p o s i t i o n p r e s s f o . c e m u s t n o l e x c e e d l t o n
since f ange may break off.
37