Volvo D20 - Page 55

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Group 21 Reconditioning engine
Cylinder head, assembfy
G5
Install:
- inner and ouler valve springs
- upper valve seal
- relainer (collel).
Importanti
Two types of valves, upper spring seats and
collets are in use.
Install swirl chambers
Check that steel ball is in chamber.
If nOl, install new swirl chamber.
G6
Make sure that ball fils in slot in cylinder head. Tap
down swirl chambers.
Importanti Special swirl chambers (different diameter)
for
USA/Canada 1982-.
G7
Install:
- glow plugs. Tightening torque 40 Nm (30 ft Ibs)
- temperature senders (2X). Same type front and rear
- connecting flange
for coolant hose (Allen 5 mm).
Inslall new gasket. Tighteninglorque 10 Nm (7 f t Ibs).
- ' lifting eyes.
Install tappets with discs
Smear tappels and discs with oil before installing.
Number on discs should face down.
Check that tappets slide easily without slicking.
GB
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