Arteon 2018 β€, Arteon 2021 β€, Arteon Shooting Brake 2021 β€, Golf 2013 β€, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
4
Valve gear
β a4.2 nd installing camshaftβ, page 199
β a4.3 nd installing camshaft control valve 1N205β, page 218
β a4.4 nd installing exhaust camshaft control valve 1N318β,
page 218
β a4.5 nd installing valve stem sealsβ, page 218
4.1
Assembly overview - valve gear
Note
β¦ Cylinder head and cylinder head cover must be renewed
together.
β¦ After installing camshafts wait for approx. 30 minutes before
starting engine. The hydraulic compensation elements must
settle (otherwise valves will strike pistons).
β¦ After working on the valve gear, turn the engine carefully
at least 2 rotations to ensure that none of the valves make
contact when the starter is operated.
β¦ Always renew gaskets and seals.
β¦ After working on the chain drive, adapt learnt values in enβ
gine control unit. To do this, switch on ignition, and select
the following menu option on vehicle diagnostic tester:
β¦ 0001 - Engine electronics, functions
β¦ 0001 - Basic setting
β¦ Timing chain length compensator, reset after re-
newing chain
Part I
Part II β page 197
194
Rep. gr.15 - Cylinder head, valve gear
Arteon 2018 β€, Arteon 2021 β€, Arteon Shooting Brake 2021 β€, Golf 2013 β€, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1 - Outlet valve
β Do not rework. Only
lapping in is permitted.
β Valve dimensions β
page 231
β Checking valve guides
β page 230
2 - Cylinder head
3 - Valve stem seal
β Renewing β a4.5.1 nd
installing valve stem
seals (cylinder head
installed)β, page 218
β a4.5.2 nd installing
valve stem seals (cylβ
inder head removed)β,
page 224
4 - Valve springs
5 - Valve spring plate
6 - Valve cotters
7 - Hydraulic compensation
element
β Do not interchange
β Oil contact surface
8 - Retaining clip
β For hydraulic compenβ
sation element.
9 - Roller rocker fingers
β Removing and instalβ
ling β a4.2 nd installing
camshaftβ, page 199
β Mark installation posiβ
tion for re-installation.
β Check roller bearing for ease of movement.
β Lubricate contact surfaces before installing.
10 - Exhaust camshaft
β Removing and installing β page 199
β Check radial clearance with Plastigage (roller rocker fingers removed).
β Radial clearance: 0.024 to 0.066 mm.
β Runout: max. 0.04 mm
11 - Spring
β No replacement part
12 - Ball
β For sliding piece
β Installing β page 217
13 - Cylinder head cover
β With integrated camshaft bearings.
β Clean sealing surface; reworking not permitted.
β Remove sealant residue.
β Removing and installing β page 199
14 - Bolt
4. Valve gear
195
Arteon 2018 β€, Arteon 2021 β€, Arteon Shooting Brake 2021 β€, Golf 2013 β€, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
β Renew
15 - Inlet camshaft
β Removing and installing β page 199
β Check radial clearance with Plastigage (roller rocker fingers removed).
β Radial clearance: 0.024 to 0.066 mm.
β Runout: max. 0.04 mm
16 - Dowel pins
17 - Dowel pins
18 - Inlet valve
β Do not rework. Only lapping in is permitted.
β Valve dimensions β page 231
β Checking valve guides β page 230
Cylinder head cover - release
β Loosen cylinder head cover bolts in the sequence -1 to 6-.
Tightening sequence for cylinder head cover
Note
β¦ Renew bolts that are tightened with turning further angle.
β¦ Take care to keep cylinder head cover level.
β Tighten bolts in stages in the sequence shown.
196
Rep. gr.15 - Cylinder head, valve gear
Arteon 2018 β€, Arteon 2021 β€, Arteon Shooting Brake 2021 β€, Golf 2013 β€, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
Stage
1
Bolts
Specified torques/angle specificaβ
tions
-1 to 6-
Screw in by hand in several stages
as far as stop
2
3
-1 to 6-
-1 to 6-
8 Nm
Turn 90Β° further
Distinguishing between valve stem oil seals
-A- valve stem oil seal with one sealing lip
β¦ Press on using valve shaft seal fitting tool -3365-
-B- valve stem oil seal with two sealing lips
β¦ Only for exhaust side of certain engines; allocation β Elecβ
tronic parts catalogue (ETKA)
β¦ Press on using valve shaft seal fitting tool -T40376/1-
Part II
Part I β page 194
4. Valve gear
197