2.1 Assembly overview - valve gear
1 - Seal
q Do not additionally
oil or grease the oil
seal sealing lip.
q Before installing, re-
move residual oil
from camshaft jour-
nal using a clean
cloth.
q To install, mask off
groove on camshaft
taper (e.g. using
Sellotape)
q Removing and in-
stalling ⇒ Page 239
2 - 10 Nm
3 - 10 Nm
4 - Retaining frame
q
Observe sequence
when loosening and
tightening
⇒ Page 233.
q
Seal using silicone
adhesive sealant
D 176 501 A1.
5 - 
Exhaust camshaft
6 - 
Inlet camshaft
7 - 
Roller rocker finger
q
Mark installation po-
sition.
q
Do not interchange.
q
Check roller bearing
for ease of movement.
q
Oil contact surface.
8 - 
Hydraulic compensation element
q
Mark installation position.
q
Lubricate contact surfaces before installing.
9 - 
Valve
q
Do not rework. Only lapping in is permitted.
q
Mark installation position for re-installation.
q
Valve dimensions ⇒ Page 229
q
Checking valve guides ⇒ Page 229.
10 - 
Cylinder head
q
See note
q
Removing and installing.
11 - 
Valve stem seal
12 - 
Valve spring
3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
228
Repair Group 15 - Cylinder head, valve gear