Skoda Octavia Workshop Manual page 80

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Cylinder Head/Valve Gear
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Note:
After the guide makes contact with the collar,
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the force applied to the guide must not be greater
than 10 kN otherwise the collar may shear off.
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Notes:
♦ When repairing engines with leaking valves,
it is not sufficient to rework or to replace the
valve seats and valves. It is also necessary
to inspect the valve guides for wear, particu-
larly on engines with a high mileage.
♦ Rework valve seats only sufficiently to ob-
tain a proper contact pattern. Before com-
mencing reworking, calculate the maximum
permissible reworking dimension. If the re-
working dimension is exceeded, proper op-
eration of the hydraulic valve clearance com-
pensation elements is no longer assured and
the cylinder head must be replaced.
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Edition 08.99
S00.5127.50.20