![](../../../img/11/AK502869AC00ENG.png)
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1.Use special tool Flywheel
stopper (MB991883) to secure the drive
plate. 2.Remove the drive plate bolts.
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![](../../../img/11/AK502940AA00ENG.png)
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1.
caution |
Reliably secure the plunger of
the chain tensioner with hard wire to prevent
it from jumping out of the main body.
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Push in the balancer shaft tensioner lever by hand
and push in the plunger of the chain
tensioner until it contacts the bottom. Then, insert hard
wire (piano wire, etc.) of Φ1.5
or hexagonal bar wrench (1.5 mm) into the plunger fixing
hole to secure. 2.Remove the balancer shaft chain
tensioner.
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![](../../../img/11/AK502754AA00ENG.png)
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3.
caution |
The balancer shaft module must
not be disassembled because of assembly
warranty.
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Remove the crankshaft sprocket, balancer chain and
balancer shaft module as a unit.
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![](../../../img/11/AK502755AC00ENG.png)
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1.Pry the illustrated
position with a screwdriver or tap the boss with a
hammer.
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![](../../../img/11/AK502756AA00ENG.png)
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2.If the ladder frame does
not come off, insert a flatblade screwdriver into the gap
between
the ladder frame and bearing cap as shown in the
illustration and lightly pry it to remove the
ladder frame.
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1.
caution |
Be sure to remove liquid
gasket that has entered mounting holes.
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Completely remove liquid gasket adhering to the
cylinder block and ladder frame.
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2.
caution |
Sufficiently check that there
is no residual oil on the
place where degreasing is performed. If
fingerprints are left, do not touch it with bare
hands
after the degreasing, since the oils from your
fingers will harm the seal ability.
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Degrease the surface where the liquid gasket is
applied and the contact surface between
the cylinder block and ladder frame.
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![](../../../img/11/AK502868AC00ENG.png)
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3.Squeeze liquid gasket of
Φ2.5 ± 0.5 mm in thickness and apply it to
the illustrated position of the ladder
frame. Specified
sealant:
ThreeBond 1217G or
equivalent
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![](../../../img/11/AKB00722AB00ENG.png)
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4.Tighten the ladder frame
to the specified torque of 24 ± 2 N·m in the
order shown in the illustration.
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When the new balancer shaft module
is installed, supply oil to the oil pump and the balancer
shaft bearing in the balancer shaft module using the
following procedures.
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![](../../../img/11/AK503559AC01ENG.png)
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- Clean the inside of the removed oil pan.
Put the
balancer shaft module carefully into the oil pan so
that the oil inlet can be upward.
- Pour the engine oil so that the two-third
of the balancer module can be immersed.
- Also, pour approximate 50 cc of engine oil
from the oil inlet.
- By giving four clockwise rotations or more
to the balancer shaft sprocket, the oil
is supplied to the oil pump and the balancer shaft
bearing.
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![](../../../img/11/AK603521AE00ENG.png)
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1.Wipe the dirt on the
crankshaft sprocket and the crankshaft using a rag,
and then remove the grease from the portion shown in the
illustration.
note |
Remove grease to prevent a
drop in the coefficient of friction of the
pressing portion
caused by adhesion of oil.
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![](../../../img/11/AK502753AC00ENG.png)
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2.Align the timing mark of
the balancer shaft module sprocket with that of the balancer
shaft module. 3.Insert a hexagonal bar wrench (3
mm) as illustrated to prevent the balancer shaft
module sprocket from moving. 4.Loop the balancer
chain, aligning its link plate (orange) with the timing
mark. 5.Install the crankshaft sprocket on the
crankshaft.
note |
Do not push in the crankshaft
sprocket to the normal position. Push it in only
up to the
tip of the crankshaft.
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![](../../../img/11/AK502754AA00ENG.png)
![](../../../img/11/AK503334AC01ENG.png)
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6.While slanting the
balancer shaft module, align the link plate (blue) of
another balancer
chain with the timing mark of the crankshaft sprocket to
loop. Gradually push in the crankshaft
sprocket and fit it into the key groove of the crankshaft.
Then, install the balancer shaft
module on the ladder frame.
note |
Make sure that the balancer
shaft module is completely intimate contact with
the ladder
frame.
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note |
Make sure that the key groove
of the crankshaft is aligned with the contact
surface of
the cylinder block and ladder frame as shown in
the illustration.
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![](../../../img/11/AK503386AC00ENG.png)
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7.Apply an appropriate and
minimum amount of engine oil to the screw thread of the
balancer
shaft module bolt.
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![](../../../img/11/AK502804AC00ENG.png)
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8.Tighten bolts to the
specified torque of 20 N·m according to the assembly
order
in the illustration, retighten them to 44 N·m, and
then completely loosen them.
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![](../../../img/11/AK503158AC00ENG.png)
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9.After tightening them to
the specified torque of 20 N·m again, use special tool
Angle gauge (MB991614) to tighten them up to
135°. 10.Pull out the hexagonal bar wrench
from the balancer module sprocket.
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![](../../../img/11/AK502923AD01ENG.png)
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11.Make sure that the
respective timing mark is aligned with each other as
illustrated. 12.Install the balancer chain
tensioner lever and balancer chain guide.
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![](../../../img/11/AK502940AA00ENG.png)
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1.Attach the chain tensioner
to the ladder frame. 2.
caution |
Install the chain tensioner
precisely in place after installing the
tensioner
lever and chain guide to prevent the plunger of
the chain tensioner from jumping out.
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Remove the hard wire (piano wire, etc.) of
Φ1.5 or hexagonal bar wrench (1.5
mm) from the tensioner. This enables the plunger of the
chain tensioner to push the balancer
shaft tensioner lever to keep the balancer shaft chain
tight.
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![](../../../img/11/AK502871AC00ENG.png)
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After applying a small amount of
engine oil to the oil seal lip, use special tool Rear
oil seal installer (MD998718) to press fit the oil
seal.
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1.Clean off sealant and oil
of thread of crankshaft and drive plate bolts.
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![](../../../img/11/AK503335AC00ENG.png)
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2.Use special tool Flywheel
stopper (MB991883) to secure the drive plate.
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![](../../../img/11/AK600847AB00ENG.png)
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3.Apply engine oil to thread
of crankshaft and bolt seat area of drive
plate. 4.Apply the sealant to the thread of drive
plate bolts. Specified
sealant:
ThreeBond 1324 or
equivalent
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![](../../../img/11/AK603576AC00ENG.png)
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5.Tighten drive plate bolts
to temporary torque of 40 N·m in the order shown to
illustration. 6.Tighten drive plate bolts to
specified torque of 130 N·m in the order shown
in the illustration.
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