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Valve gear - exploded view > < Cylinder head

A5

Valve gear
Valve gear
Overview
t  → Chapter „Valve gear - exploded view“
t  → Chapter „Measuring axial clearance of camshafts“
t  → Chapter „Measuring radial clearance of camshafts“
t  → Chapter „Removing and installing camshafts“
t  → Chapter „Checking hydraulic valve compensation elements“
t  → Chapter „Renewing valve stem oil seals with cylinder head installed“
t  → Chapter „Renewing valve stem oil seals with cylinder head removed“
t  → Chapter „Valve dimensions“
t  → Chapter „Checking valve guides“
t  → Chapter „Checking valves“
  Caution
Avoid damage to valves and piston crowns after working on valve gear.
t  The hydraulic tappets have to settle; wait for approx. 30 minutes after installing camshafts before starting engine.
t  Turn the engine carefully at least 2 rotations to ensure that none of the valves make contact when the starter is operated.
  Note
Cylinder heads which have cracks between the valve seats or between a valve seat insert and the spark plug thread can be re-installed without reducing service life, provided the cracks are only slight and do not exceed a maximum of 0.3 mm in width, and no more than the first 4 turns of the spark plug threads are cracked.
   

Valve gear - exploded view > < Cylinder head