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Use the turning tool to turn the crank-
shaft until the 4th or 6th cylinder is at
overlap TDC. (1st cylinder at ignition
TDC). Then turn the 1st cylinder to
overlap TDC (4th or 6th cylinder at igni-
tion TDC).
Check and adjust the valves in accord-
ance with the table above.
Measure the valve clearance between
the rocker arm and valve stem (outlet
valve) or valve bridge (inlet valve) using
a feeler gauge (arrow).
It must be possible to pull the feeler
gauge through with only light resist-
ance.
Loosen counternut 2 to permit ad-
justment of the valve clearance. Adjust
the valve clearance by turning adjust-
ment screw 1.
1 Adjustment screw
2 Counternut
Retighten the counternut.
Tightening torque: 25 Nm.
Check the valve clearance again and
readjust if necessary.
Maintenance
Work schedules
Concluding work
Refit the cylinder head cover
(
see page 75).
Remove the turning tool from the fly-
wheel housing inspection hole.
Seal the inspection hole with the cap.
Tightening torque: 25 Nm
5
77
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