Checking And Machining - Mercedes-Benz 201.024 Service Manual

Checking and machining

1 Clean valves and carry out visual inspection.
Valves with burnt valve heads with insufficient
valve head height " h" and with worn or scored
valve stem are to be replaced.
2 Measure valve stem eccentricity. Replace
valve when an eccentricity of more than
0.03 mm is measured.
3 Machine valve seat. Note operating
instructions of the machining equipment and
adjustment angle
4 Measure valve seat eccentricity and valve
head height " h" . Replace valve if the limit
values are reached.
05.0906 - 28014
h
EXIT