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4
Inlet and exhaust valves
⇒ “4.1 Checking valve guides”, page 124
⇒ “4.2 Valves: checking”, page 124
⇒ “4.3 Valve dimensions”, page 125
4.1
Checking valve guides
Special tools and workshop equipment required
♦ Universal dial gauge bracket - VW 387-
♦ Gauge - VAS 6079-
Test procedure
– Insert a new valve in the guide. The end of the valve stem
should be flush with the guide. On account of differing stem
diameters, only use inlet valve in inlet valve guide and exhaust
valve in exhaust valve guide.
– Determine sideways play.
• Wear limit: 0.5 mm.
– If the wear limit is exceeded, repeat the measurement with
new valves.
– Renew cylinder head if wear limit is still exceeded.
Note
Valve guides cannot be exchanged.
4.2
Valves: checking
– Visually inspect for scoring on valve stems and valve seat sur‐
faces.
– Renew valve if scoring is clearly visible.
León 2013 ➤ , León ST 2013 ➤
4-cylinder petrol engine (1.2 l direct injection, 4 V, turbocharger, EA211) - Edition 02.2017
124
Rep. gr.15 - Cylinder head, valve gear
