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Adjust the valves only when engine is cold
(max. coolant temperature 50°C).
Fig. 1
Remove cylinder head cover.
Caution:
Residual amounts of oil may emerge du-
ring this operation.
Used oil is dangerous waste.
Observe safety regulations to prevent da-
mage to the environment.
Fig. 2
Use cranking device to turn engine until the piston
of the cylinder to be adjusted is at ignition TDC
and the rocker arms are relieved.
The valves of the synchronous cylinder are then in
cross-over.
Set valves in the cylinder:
1
5
3
6
2
4
Valves are in cross-over in cylinder:
Fig. 3
I
Vibation damper
II Flywheel
A Outlet valve
E Intake valve
Fig. 4
D Push feeler gauge between valve stem and
rocker arm
D Loosen lock nut (17 mm) and turn adjusting
screw with screwdriver until feeler gauge can
be moved with slight resistance
D Tighten lock nut to the specified torque
D Check clearance again
D Refit cylinder head covers with new gaskets
D Tighten the bolts to the specified torque
Setting valve claerance
6
2
4
1
5
3
89
1
2
1
2
3
I
E A
E A
E A
3
4
4
5
6
II
E A
E A
E A
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Troubleshooting
