Workshop Manual

1/4
6
2011
Cylinder head
I 01-07-07
I 01-07-07 Machine valve seat ring
Tools
- Commercial tools
Caliper gauge
Valve seat rotating device
Note
- The valve seat ring must be reworked in
the installed state in the cylinder head.
- For handling the valve seat rotating
device, observe the respective
manufacturer’s operating manual.
References
- W 01-05-01
- W 01-07-08
Check valve seat ring
z Check valve lag
Î Job card W 01-07-08.
z Remove valves and valve shaft seals
Î Job card W 01-05-01.
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z Check valve seat rings for tight fit and damage.
Note
If the wear limit of valve seat and valve lag is
not yet reached and there are no burn-
throughs, blow-throughs, tears or marks, it is
possible to rework the valve seat ring for
further use.
© 39167 0
© 11/2004 0312 1562 - 0138