Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
5
Inlet and exhaust valves
⇒ v5.2 alves”, page 231
⇒ d5.3 imensions”, page 231
5.1
Checking valve guides
Special tools and workshop equipment required
♦ Universal dial gauge holder -VW 387-
♦ Dial gauge -VAS 6079-
Test sequence
– Insert valve in guide. Valve stem end must be flush with
guide. On account of differing stem diameters, only use inlet
valve in inlet valve guide and exhaust valve in exhaust valve
guide.
– Determine rock.
230
Rep. gr.15 - Cylinder head, valve gear
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, 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
Wear limit
Inlet valve guide
0.80 mm
Exhaust valve guide
0.80 mm
Note
♦ If the wear limit is exceeded, repeat the measurement with
new valves. If the wear limit is exceeded again, renew the
cylinder head.
♦ If the valve is to be renewed as part of a repair, use a new
valve for the calculation.
5.2
Checking valves
– Check for scoring on valve stems and valve seat surfaces.
– Exchange valve if significant scoring can be seen.
5.3
Valve dimensions
Valve dimensions
Note
Never rework the inlet and exhaust valves. Only lapping-in is
permitted.
Dimension
Inlet valve
33.85 ± 0.10
5.98 ± 0.01
104.0 ± 0.2
45
Outlet valve
28.0 ± 0.1
5.96 ± 0.01
101.9 ± 0.2
45
∅ a
∅ b
c
mm
mm
mm
∠°
α
5. Inlet and exhaust valves
231
2024 VW Tiguan Owner's Manual
