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1.Align the camshaft
sprocket timing marks and set the No. 1 cylinder at
compression stroke
top dead centre.
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2.For the portions with the
arrows shown below, measure and adjust the valve clearances
by using the following procedures.
<Inlet
side>
1.) Insert the special tool valve
adjusting feeling gauge (MB992852) between the
valve stem and the adjusting screw.
2). Adjust the
clearance between the valve stem and adjusting screw to
be within
the standard value.
Standard value:
0.14 ± 0.03 mm
| 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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3.)While holding the adjusting screw
with a screwdriver
to prevent it from turning, tighten the lock nut to the
specified torque using the special tool
valve adjusting socket
(MB991477).
Tightening torque: 9
± 1 N·m
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<Exhaust
side>
1.)Using a thickness gauge,
adjust the clearance between the cam and the
roller.
3.Standard value: 0.16
± 0.03 mm
| 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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2.)While holding the adjusting screw
with a screwdriver
to prevent it from turning, tighten the lock nut to the
specified torque using the special tool(MB992046),
valve adjusting
socket.
4.Tightening torque:
9.8 ± 1 N·m
5.Turn the
crankshaft 360° clockwise to bring No. 4 cylinder to
the compression
stroke top dead centre position.
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6.For the portions with the
arrows shown below, measure and adjust the valve clearances
by using the same procedures as ones in the Step 2.
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