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To introduce the serpentine drive system with the auto-tensioner, the following operations
will be required.
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1.
| warning |
Be sure to set the tool to the hexagonal part securely to
prevent the tool from falling off because the tension of the auto-tensioner is high.
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Securely set the tool to the hexagonal part of the auto-tensioner.
2.Rotate the auto-tensioner anti-clockwise.
3.Insert the L-shaped hexagon wrench into the auto-tensioner hole to fix the auto-tensioner.
4.
| caution |
To reuse the drive belt, draw an arrow indicating the rotating
direction on the back of the belt using chalk to install the same direction.
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Remove the drive belt.
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1.Use the following special tools to support the crankshaft pulley:
- Front hub and flange yoke holder (MB990767)
- Pin (MD998719)
2.Loosen the crankshaft pulley centre bolt and remove the crankshaft pulley washer and
crankshaft pulley.
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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 thread
of the crankshaft pulley centre bolt and the lower area of the flange.
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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 (MD998719)
6.Tighten the crankshaft pulley centre bolt to the specified torque.
Tightening torque: 210 N·m
7.Loosen the crankshaft pulley centre bolt fully.
8.Tighten the crankshaft pulley centre bolt to the specified torque again.
Tightening torque: 210 N·m
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1.
| caution |
- To reuse the drive belt, install it by aligning
the arrow mark on the backside of belt marked at the removal with the rotating direction.
- Check that the notches of the notched pulley and the notches of the drive belt are fit
correctly.
- Check that the drive belt is installed in the centre of the flat surface of the
flat pulley.
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Install the drive belt to each pulley as shown in the figure.
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2.
| warning |
Be sure to set the tool to the hexagonal part securely to
prevent the tool from falling off because the tension of the auto-tensioner is high.
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Securely set the tool to the hexagonal part of the auto-tensioner.
3.Rotate the auto-tensioner anti-clockwise and remove the L-shaped hexagon wrench fixing
the auto-tensioner.
4.Apply tension to the drive belt while slowly turning the auto-tensioner clockwise.
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