![](../../../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/AC211535AD01ENG.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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