Volkswagen Workshop Service and Repair Manuals > Polo Mk3 > Power unit | 4-cyl. injection engine (4-valve, roller rocker finger), Mechanics | Engine cylinder head, valve gear | Servicing valve gear

4-cyl. injection engine (4-valve, roller rocker finger), Mechanics

Servicing valve gear

Checking valve guides

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

Test sequence

‒ → Insert new valve into guide until end of valve stem is flush with end of guide. Due to the slight difference in stem dimensions, ensure that only an inlet valve is used in the inlet guide and an exhaust valve in the exhaust guide.
‒ Determine rock.
Wear limit: 0.8 mm

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