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2
Valve command - repair
Note
♦
Cylinder heads with cracks between the valve seats can still
be used without reducing their useful life when such cracks
are small, maximum 0.5 mm wide.
♦
All bearing and running surfaces must be lubricated before in‐
stalling.
WARNING
Always replace self-locking nuts and screws subject to angular
torque
1 - 20 Nm + 90°
❑ Replace after each re‐
moval.
❑ Loosen and tighten in
the proper order
⇒ page 58
2 - Injector drive arm shaft
3 - Cylinder head securing bolt
❑ Replace.
❑ Loosen and tighten in
the proper order
⇒ page 46
❑ Before installing, set
washers in cylinder
head.
4 - Washer
❑ For head screws.
5 - Tappet
❑ Do not interchange.
❑ With hydraulic offsetting
of valve gap.
❑ Store with cam lobe
contact surface down‐
wards.
❑ Check camshaft axial
clearance before instal‐
ling
⇒ page 52
❑ Lubricate contact sur‐
face.
❑ Before removing, re‐
move the camshaft
bearing caps.
6 - Keys
7 - Valve spring upper plate
8 - Valve spring
❑ Removing and installing: Cylinder head removed: with Compressor device -2037- mounted
⇒ page 56
.
Fox 2004 ➤
3 - Cyl. diesel engine - Edition 02.2009
2. Valve command - repair
51
