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The following operations will be
required due to the introduction of the drive belt system
with auto-tensioner.
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![](../../../img/11/ACB01502AC00ENG.png)
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1.
caution |
To reuse the drive belt, draw
an arrow indicating the rotating
direction on the back of the drive belt using
chalk to install the same direction.
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Turn the drive belt auto-tensioner
clockwise.
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![](../../../img/11/AC905590AC00ENG.png)
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2.Insert the L-shaped
hexagon wrench into the drive belt auto-tensioner hole to
fix the
drive belt auto-tensioner. 3.Remove the drive
belt.
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![](../../../img/11/AC809080AB00ENG.png)
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1.
caution |
- To reuse the water pump drive belt, draw
an arrow indicating the rotating
direction on the back of the water pump
drive belt using chalk
to install the same direction.
- Hang the special tool drive belt remover
(MB992276) on the vehicle components
(including
front sidemembers) using a cord and
paper clip to prevent from
falling.
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Mount the special tool drive belt remover (MB992276)
in between the water pump pulley
and the water pump drive belt, then hold it with your
fingers. 2.
caution |
Be careful that the finger
holding the special tool MB992276 is not
pinched.
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Slightly turn the crankshaft pulley clockwise until
the special tool MB992276 is pinched
and held between the water pump pulley and the water pump
drive belt. 3.If the special tool MB992276 is
held, move the finger off. 4.
caution |
If the water pump drive belt
is detached, be careful
that the special tool MB992276 is also detached
and fallen.
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Slowly turn the crankshaft pulley clockwise until
the water pump drive belt goes aground
on the special tool MB992276 and is
detached. 5.Remove the special tool
MB992276.
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![](../../../img/11/AC809077AC00ENG.png)
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1.Use the following special
tools to support the crankshaft pulley:
- Front hub and flange yoke holder (MB990767)
- Pin (MD998754)
2.Loosen the crankshaft pulley centre
bolt.
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Install a special tool for holding
the engine and transmission assembly.
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![](../../../img/11/AC809089AB00ENG.png)
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1.Install the engine hanger
right (MD016967) to the cylinder head tightening bolt of the
emission control pipe and hose assembly.
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![](../../../img/11/AC809432AB00ENG.png)
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2.Install the special tool
engine hanger plate (MB991956) to the cylinder
head.
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![](../../../img/11/AC809434AB00ENG.png)
![](../../../img/11/AC809083AB00ENG.png)
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3.<When special tool
engine hanger (MB991928) is used> (1)
Assemble special tool engine hanger (MB991928). (Set the
following
parts on the base hanger.)
- Slide bracket (HI)
- Joint x 2 (50) (MB991929)
- Joint x 2 (90) (MB991930)
- Joint x 2 (140) (MB991931)
- Foot x 2 (standard) (MB991932)
- Foot x 2 (short) (MB991933)
(2)
Set the foot of the special tool as shown in the
figure.
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note |
Slide the slide
bracket (HI) to adjust the engine
hanger balance.
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(3)
Mount special tool hanger (MB991527) to the engine hanger,
and set it to special tool
MB991928 to support the engine and transmission
assembly.
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![](../../../img/11/AC809084AB00ENG.png)
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4.<When special tool
engine hanger (MB991895) is used> (1)
Set the foot of special tool engine hanger (MB991895) as
shown in the figure.
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note |
Slide the foot to
adjust the engine hanger
balance.
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(2)
Mount special tool hanger (MB991527) to the engine hanger,
and set
it to special tool MB991895 to support the engine and
transmission assembly.
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![](../../../img/11/AC808998AB00ENG.png)
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Press-fit the dowel pin to the
crankshaft pulley as shown.
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![](../../../img/11/AC808986AB00ENG.png)
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1.Wipe off the dirt on the
crankshaft sprocket, crankshaft and crankshaft pulley as
shown
in the figure using a rag, and then degrease the
areas.
note |
Degrease them to prevent drop
in the friction coefficient of the pressed area,
which is
caused by oil adhesion.
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2.Install the crankshaft
pulley. 3.Wipe off the dirt on the crankshaft
pulley washer and the crankshaft pulley centre
bolt as shown in the figure using a rag. 4.Apply
an adequate and minimum amount of engine oil to the threads
of the crankshaft pulley centre bolt and the lower area of
the flange.
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![](../../../img/11/AC809077AC00ENG.png)
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5.Use the following special
tools as during removal to support the crankshaft
pulley:
- Front hub and flange yoke holder (MB990767)
- Pin (MD998754)
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![](../../../img/11/AC809171AB00ENG.png)
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6.Tighten the crankshaft
pulley centre bolt according to the following
procedure. (1)
Tighten the crankshaft pulley centre bolt to the specified
torque. Tightening torque: 250
N·m (2)
Loosen the crankshaft pulley centre bolt fully. (3)
Tighten the crankshaft pulley centre bolt to the specified
torque again. Tightening torque: 110
N·m (4)
As shown in the illustration "A," apply the paint mark to
the crankshaft pulley on the
extended line of the corner adjacent to the one of the
crankshaft pulley centre bolt corners. (5)
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caution |
- When the tightening angle is
smaller than
the specified tightening
angle, the appropriate
tightening capacity cannot
be secured.
- When the tightening angle is
larger than the specified
tightening angle, remove
the bolt to start from the
beginning again according to
the procedure.
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Tighten the crankshaft pulley centre bolt by
60° once more. Make sure the paint
mark of crankshaft pulley centre bolt is aligned with the
paint mark of crankshaft pulley as
shown in the illustration "B."
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![](../../../img/11/AC809096AD00ENG.png)
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1.
caution |
Be careful not to pinch your
fingers when holding the water
pump drive belt.
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Fit the water pump drive belt on the front step
(rear three ribs) of the crankshaft pulley,
and then push the water pump drive belt at the water pump
pulley side with your finger as shown.
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![](../../../img/11/AC900196AC00ENG.png)
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2.
caution |
Check that the notches of the
notched pulley and the notches of the water pump
drive belt
are fit correctly.
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Rotate the crankshaft pulley clockwise slowly to fit
the water pump drive belt around
the water pump pulley.
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![](../../../img/11/AC809082AC00ENG.png)
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3.Set the special tool drive
belt installer (MB992288) on the front side of the
crankshaft
pulley. Then slide it by hand until it touches the water
pump drive belt.
note |
Hang the special tool drive
belt installer (MB992288) on the vehicle
components (including
front sidemembers) using a cord and paper clip
to prevent from falling.
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4.Release the special tool. Then rotate
crankshaft pulley clockwise slightly until special
tool MB992288 is engaged between the water pump drive belt
and the crankshaft pulley. 5.Rotate the crankshaft
pulley clockwise further to fit the water pump drive belt
around
the rear side of the crankshaft pulley. 6.Remove
special tool MB992288. 7.Turn the crankshaft
pulley clockwise on several times and check that the water
pump
drive belt is installed in the water pump pulley and the
crankshaft pulley securely.
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