Volkswagen Workshop Service and Repair Manuals > Passat (B3) > Power unit | 4-cyl. fuel injection engine (cross-flow cylinder head) | Engine cylinder head, valve gear | Servicing valve gear

4-cyl. fuel injection engine (cross-flow cylinder head)

Servicing valve gear

Checking valve guides

Special tools, testers and auxiliary items

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:
     Inlet valve guide = 1.0 mm
     Exhaust valve guide = 1.3 mm

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