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Admission valve seat: reworking > < Valve seating: revision

Leon Mk2

Calculate the max. permissible reworking dimension
Calculate the max. permissible reworking dimension
–  Insert valve and press firmly against seat.
  Note!
If the valve is to be replaced as part of a repair, use a new valve for the calculation.
   
–  Measure distance between end of valve stem and upper edge of cylinder head.
–  Calculate max. permissible reworking dimension from measured distance and minimum dimension.
  V15-0640
Minimum dimensions
Inlet valve33,8 mm
Exhaust valve34,1 mm

Measured distance -a- minus the minimum value = maximum permissible reworking measurement.
   
Example:
 Measured distance -a-35,1 mm
-Minimum dimension- 34,1 mm
=max. perm. rework dimension → Note= 1,0 mm

1)  The max. permissible reworking dimension is shown on illustrations as dimension “b”.
  Note!
If the max. reworking dimension is 0 mm or less than 0 mm, repeat the measurement with a new valve. If the result of the measurement with a new valve is still 0 mm or less than 0 mm, the cylinder head should be replaced.
   

Admission valve seat: reworking > < Valve seating: revision