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Checking valve guides >
< Checking supporting elements with hydraulic clearance compensation
A4 Mk2
Power unit
4-cylinder direct petrol injection engine (2.0 ltr. 4-valve), mechanics
Engine cylinder head, valve gear
Servicing valve gear
Valve dimensions
Valve dimensions
Valve dimensions
Note
Inlet and exhaust valves must not be machined. Only grinding-in is permitted.
Dimension
Inlet valve
Exhaust valve
Ø a
mm
26.80 … 27.00
29.80 … 30.00
Ø b
mm
5.95 … 5.97
5.94 … 5.95
c
mm
104.84 … 105.34
103.64 … 104.14
α
∠°
45
45
Power unit
4-cylinder direct petrol injection engine (2.0 ltr. 4-valve), mechanics
Engine cylinder head, valve gear
Servicing valve gear
Valve dimensions
Checking valve guides >
< Checking supporting elements with hydraulic clearance compensation
Note