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1.
| caution |
Leaked fuel on parts causes a
decrease in function and burning. Therefore,
Place waste to absorb leaked fuel.
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Remove the rocker cover (Refer to GROUP 13E -
Fuel Injector  ).
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2.
| caution |
The crankshaft should always
be turned in a clockwise direction.
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Align the camshaft sprocket timing marks and set the
No. 1 cylinder at top dead centre.
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3.Measure the valve
clearance.
If the valve clearance is not as specified,
loosen the rocker arm lock nut and adjust the clearance
using a thickness gauge between the cam shaft and the roller
while turning the adjusting screw.
Standard
value (cold engine):
Inlet valve: 0.09
mm
Exhaust valve: 0.14 mm
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4.
| caution |
Pay special attention that the
tightening torque is not beyond this valve. If
the tightening torque is beyond the valve, the
valve stem would possibly bend.
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While holding the adjusting screw with a screwdriver
to prevent it from turning, tighten the lock nut to the
specified torque using a valve adjusting socket
(MB992046).
Tightening torque: 15 ± 3
N·m
5.Turn the crankshaft 360°
clockwise to bring No. 4 cylinder to the top dead centre
position.
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6.Measure the valve
clearances at the places indicated by arrows in the
illustration. If the clearance is not within the standard
value, repeat steps 3 and 4 above.
7.Install the
rocker cover (Refer to GROUP 13E - Fuel Injector ).
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