Engine
SHOP MANUAL
Ch 1 page 81
Checking and adjusting the valve clearance:
Readings can be taken from the flywheel through openings in
the flywheel housing either from above or below depending on
access when fitting
1. Turn the flywheel with tool 8405 so that the piston in cylinder
No. 1 is at TDC after compression.
2. Check the valve clearance using a feeler gauge and, if neces-
sary, use the adjusting screw on the rocker arm to set the correct
clearance.
The clearance for intake valves should be 0.45 mm
and the
clearance for exhaust valves should be 0.70 mm
when the engine is cold.
The intake valves are actuated by the short rocker arms and the
exhaust valves by the long rocker arms. Make sure the valve
bridge is resting correctly against the valves.
Adjusting the valve clearance and unit injectors
1. Fit the unit injector according to the section
Fitting the PDE injector, steps 1-11.
2. Fit the pushrods.
3. Fit the bearing bracket and torque tighten the
bolts to 115 Nm.
4. Fit the valve bridges.
Important!
Lubricate the valve bridges with engine oil.
5. Continue according to the section:
Fitting the PDE unit injector steps 6 - 11
Check and adjust the valve clearance and unit injectors at the
same time and with the engine cold.
NOTE
Checking and adjusting valve clearances should also be done
after the rst 500 hours of operation. Valve clearances should
be adjusted when the engine is cold, at least 30 minutes after
running.
NOTE
Secure the starting device when working on the engine. If the
engine starts unexpectedly, there is a serious risk of injury.
WARNING
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