Volkswagen Passat 1995 Official Factory Repair Manual page 614

Valve train, servicing
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Valve guides, checking
- Insert new valve into guide until end
of valve stem is flush with end of
guide. Due to the slight difference in
stem dimensions, make sure that
only an intake valve is used in the
intake guide and an exhaust valve in
the exhaust guide.
- Determine rock.
Wear limit:
Intake valve guide = 1.0 mm
Exhaust valve guide = 1.3 mm
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