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Checking camshaft axial clearance > < Assembly overview - valve gear

Polo Mk3

Reworking cylinder head sealing surface
   
Reworking cylinder head sealing surface
Cylinder head reworking dimension: a = at least 135.6 mm
  Note
When the sealing surface has been reworked, the valves must be set deeper by the same amount (valve seat inserts reworked) or valves will contact pistons. When doing so, ensure that the minimum permissible dimension is maintained → Chapter.
  V15-0671

Checking camshaft axial clearance > < Assembly overview - valve gear