![](../../../img/11/ACE01650AB00ENG.png)
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1.
caution |
Never turn the crankshaft
anti-clockwise.
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Turn the crankshaft in the forward direction
(clockwise) to align the timing mark so that No.1 cylinder
is at the compression TDC (Top Dead Centre)
position.
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![](../../../img/11/AC507900AB00ENG.png)
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2.Insert special tool
adjusting bolt (MD998738) into the rubber plug hole in the
timing belt rear cover.
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![](../../../img/11/AC107289AB00ENG.png)
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3.
caution |
The special tool (MD998738)
can be gradually installed at a rate of a 30
degree turn per second. If it is screwed in all
at once, the timing belt auto-tensioner rod will
not easily retract and the special tool may
bend.
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Screw in the special tool (MD998738) until it comes
in contact with the timing belt tensioner arm.
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![](../../../img/11/AC102775AB00ENG.png)
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4.Gradually screw in the
special tool (MD998738). Then align the timing belt
auto-tensioner rod set hole A with the timing belt
auto-tensioner cylinder set hole B.
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![](../../../img/11/AC107185AB00ENG.png)
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5.Insert a wire in the set
hole. 6.
caution |
To reuse the timing belt, draw
an arrow indicating the rotating direction
(clockwise) on the back of the belt using
chalk.
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After removal of special tool (MD998738), loosen the
timing belt tensioner pulley mounting bolt and remove the
timing belt.
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![](../../../img/11/AC102332AE00ENG.png)
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1.Use the following special
tools to support the crankshaft sprocket.
- Special spanner (MB991367)
- Pin (MB991385)
2.Loosen the crankshaft sprocket bolt and remove
the crankshaft sprocket.
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![](../../../img/11/AC102689AJ00ENG.png)
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1.Ensure that the crankshaft
sprocket B timing marks and balancer shaft sprocket timing
marks are aligned. 2.Install the timing belt B on
the crankshaft sprocket B and balancer shaft sprocket. There
should be no slack on the tension side.
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![](../../../img/11/AC102690AB00ENG.png)
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3.Assemble and temporarily
fix the centre of the pulley of the timing belt B tensioner
so that it is at the top left from the centre of the
mounting bolt, and the pulley flange is at the front-side of
the engine. 4.Adjust the timing belt B
tension.
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![](../../../img/11/AC102691AA00ENG.png)
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1.
caution |
When tightening the mounting
bolt, ensure that the tensioner does not rotate
with the bolt. Allowing it to rotate with the
bolt can cause excessive tension of the
belt.
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With your fingers, lift the timing belt B tensioner
in the direction of the arrow. Apply pressure of 3.0 ±
0.4 N·m to the timing belt B. Tighten the assembling
bolt to the specified torque. Then, fix the timing belt B
tensioner. Tightening torque: 19 ± 3
N·m
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![](../../../img/11/AC102689AK00ENG.png)
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2.Turn the crankshaft
clockwise two turns to set No.1 cylinder to TDC of its
compression stroke and check that the sprocket timing marks
are aligned. 3.Adjust the timing belt B tension in
the following procedure.
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![](../../../img/11/AC507219AB00ENG.png)
![](../../../img/11/AC600461AB00ENG.png)
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4.<Special tool
(MB992080) is used> (1)
Connect the special tool microphone assembly (MB992082) to
the special tool belt tension meter (MB992081) of the
special tool belt tension meter set (MB992080). (2)
Press the "POWER" button to turn on the power supply. (3)
Press the numeral key of "1" and check that "No.1" appears
on the upper left of the display.
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note |
This operation is
to temporarily set the preset data
such as the belt specifications,
because if the measurement is taken
without input of the belt
specifications, conversion to
tension value (N) cannot be made,
resulting in judgement of
error.
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(4)
Press "Hz" button twice to change the display to the
frequency display (Hz). (5)
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caution |
- The temperature of the
surface of the belt should
be as close to normal
temperature as
possible.
- Do not allow any
contaminants such as water
or oil to get onto the
microphone.
- If strong gusts of wind blow
against the microphone or if
there are any loud sources
of noise nearby, the values
measured by the microphone
may not correspond to actual
values.
- If the microphone is
touching the belt while the
measurement is being made,
the values measured by the
microphone may not
correspond to actual
values.
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Hold the microphone to the middle of the belt
between the pulleys (at the place indicated by arrow),
approximately 10 - 15 mm away from the rear surface of
the belt so that it is perpendicular to the belt (within an
angle of ± 15 degree). (6)
Press the "MEASURE" button. (7)
Gently tap the middle of the belt between the pulleys (the
place indicated by the arrow) with your finger as shown in
the illustration, and measure that the vibration frequency
of the belt is within the standard
value. Standard value: 62 - 98
Hz
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note |
To take the
measurement repeatedly, fillip the
belt again.
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(8)
After the completion of the measurement, press and hold the
"POWER" button to turn off the power supply. 5.If
not within the standard value, adjust the belt tension
again.
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![](../../../img/11/AC211535AD00ENG.png)
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1.Clean or degrease the
crankshaft, the crankshaft angle sensing blade, the
crankshaft sprocket, crankshaft sprocket washer and
crankshaft sprocket bolt as shown.
note |
Also clean the degreased
surfaces.
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2.Install the crankshaft angle sensing blade
and crankshaft sprocket in the direction
shown. 3.Place the larger chamfer side of the
crankshaft sprocket washer in the direction shown and then
assemble on the crankshaft sprocket bolt. 4.Apply
some engine oil to the crankshaft sprocket bolt bearing
surface and screw.
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![](../../../img/11/AC102332AE00ENG.png)
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5.Use the following special
tools as during removal to support the crankshaft
sprocket.
- Special spanner (MB991367)
- Pin (MB991385)
6.Tighten the crankshaft pulley centre bolt to
the specified torque. Tightening torque: 167
N·m 7.Loosen the crankshaft pulley
centre bolt fully. 8.Tighten the crankshaft pulley
centre bolt to the specified torque
again. Tightening torque: 167
N·m
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![](../../../img/11/AC102334AB00ENG.png)
![](../../../img/11/AC102335AB00ENG.png)
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1.Install according to the
following procedures when the timing belt auto-tensioner rod
is fully extended. (1)
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caution |
If the compression
is too fast, the procedure may
damage the rod.
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Slowly compress the timing belt auto-tensioner rod
using a press or vice, then align the set hole A of the rod
with set hole B of the timing belt auto-tensioner
cylinder. (2)
Insert a wire or pin into the aligned set hole.
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note |
When replacing the
timing belt auto-tensioner with new
parts, the timing belt
auto-tensioner is set with a
pin.
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2.Assemble the timing belt auto-tensioner to
the engine, then tighten the assembling bolt to the
specified torque. Do not remove the wire or pin until the
tension of the timing belt is adjusted.
Tightening torque: 23 ± 6
N·m
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![](../../../img/11/AC102336AB00ENG.png)
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Temporarily tighten the timing belt
tensioner pulley as shown.
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![](../../../img/11/ACE01651AB00ENG.png)
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1.Align the timing marks on
the camshaft sprocket, crankshaft sprocket and engine oil
pump sprocket.
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![](../../../img/11/AC508037AB00ENG.png)
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2.Adjust the timing mark of
the engine oil pump sprocket. Unplug the cylinder block
plug. Insert a bolt (M6, section width 10 mm, nominal length
45 mm) from the plug hole and then check. If the bolt comes
in contact with the balancer shaft turn the sprocket one
rotation. Re-adjust the timing mark and then check to see
that the bolt fits. Do not remove the bolt until the timing
belt is assembled.
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![](../../../img/11/ACE01650AB00ENG.png)
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3.Install the timing belt as
follows: (1)
Place the timing belt on the timing belt tensioner pulley
and crankshaft sprocket. Support it with your hand so it
does not slide. (2)
Place the timing belt on the engine oil pump sprocket while
pulling it with your other hand. (3)
Place the timing belt on the timing belt idler
pulley. (4)
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caution |
Incorporate the
timing belt. Then apply reverse
rotation (anti-clockwise rotation)
pressure to the camshaft sprocket.
Re-check to see that each timing
mark is aligned while the tension
side of the belt is tight.
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Place the timing belt on the camshaft
sprocket.
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![](../../../img/11/AC102694AB00ENG.png)
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4.Turn the timing belt
tensioner pulley in the direction shown using special tool
tensioner wrench (MD998767) to apply tension to the timing
belt. Then pre-tighten the timing belt tensioner pulley.
5.Check that the timing marks are
aligned.
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![](../../../img/11/AC508037AB00ENG.png)
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6. Remove the bolt inserted
in Step 2 above, then assemble the cylinder block
plug. 7.Tighten the cylinder block plug to the
specified torque. Tightening torque: 30 ±
3 N·m 8.Adjust the timing belt
tension.
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![](../../../img/11/AC507900AB00ENG.png)
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1.Set special tool adjusting
bolt (MD998738) when removing the timing
belt. 2.
caution |
Always screw in special tool
by hand, since use of a spanner or other tools
may damage the wire or pin inserted in the
timing belt auto-tensioner.
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Gradually screw in special tool (MD998738) until the
wire or pin inserted in the timing belt auto-tensioner
lightly moves. 3.Turn the crankshaft 1/4
turn anti-clockwise. 4.Turn the crankshaft in the
clockwise direction until you align each timing mark to set
No.1 cylinder to TDC of its compression
stroke. 5.Loosen the timing belt tensioner pulley
mounting bolt.
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![](../../../img/11/AC102695AB00ENG.png)
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6.
caution |
When tightening the mounting
bolt, ensure that the timing belt tensioner
pulley does not rotate with the bolt. Allowing
it to rotate with the bolt can cause deficient
tension of the belt.
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With special tool tensioner wrench (MD998767) and
torque wrench, apply tension torque 3.5 N·m, and
tighten the timing belt tensioner pulley mounting bolt to
the specified torque. Tightening torque: 41
± 10 N·m
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![](../../../img/11/AC102776AB00ENG.png)
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7.Remove wire or pin
inserted to timing belt auto-tensioner.
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![](../../../img/11/AC507900AB00ENG.png)
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8.Remove the special tool
adjusting bolt (MD998738), and install the rubber plug to
the timing belt rear cover. 9.Rotate the
crankshaft clockwise two turns, and leave it for about 15
minutes.
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![](../../../img/11/AC102776AB00ENG.png)
![](../../../img/11/AC102338AD00ENG.png)
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10.Insert wire or pin
removed in Step 7 again, and ensure that it can be pulled
out easily. When wire or pin can be easily removed,
appropriate tension is applied on timing belt. In this case,
remove wire or pin. If the projection of timing belt
auto-tensioner rod is within the standard value, appropriate
tension is applied. Standard value (A): 3.8
- 4.5 mm 11.If wire or pin cannot be
easily pulled out, repeat Step 1 through Step 9 to reach
proper timing belt tension.
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![](../../../img/11/ACE01650AB00ENG.png)
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12.
caution |
Always check the tightening
torque of the crank shaft bolt when turning the
crack shaft bolt anti-clockwise. Re-tighten if
it is loose.
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Check again that the timing marks on sprockets are
aligned.
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