![](../../../img/13/AC503943AB00ENG.png)
![](../../../img/13/AC503952AB00ENG.png)
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Turn the crankshaft clockwise,
align each timing mark to set No.1 cylinder to TDC (top dead
centre) of its compression stroke.
note |
When viewed from the front,
the alignment mark on the supply pump gear
deviates from that on the front plate by about 1
- 2 gears.
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![](../../../img/13/AC503397AB00ENG.png)
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1.Loosen the locking nut of
the tension pulley. 2.
caution |
To reuse the drive belt, draw
an arrow indicating the rotating direction
(clockwise) on the back of the belt using chalk,
etc.
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Rotate the adjusting bolt to the anti-clockwise
direction (to the left), and remove the drive belt.
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1.With the hose installed,
remove the A/C compressor assembly from the
bracket.
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2.After removing the
A/C compressor assembly, secure it with a cord in the
location where the removal and installation of the supply
pump and supply pump holder assembly cannot be hindered.
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![](../../../img/13/AK602186AB00ENG.png)
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Using special tool Oil pressure
switch socket wrench (MB992118), removal the engine oil
pressure switch.
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1.Turn the crankshaft
clockwise to bring No. 1 cylinder to TDC of its compression
stroke.
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![](../../../img/13/AC503937AB00ENG.png)
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2.Install the front plate
after mating marks on the supply pump gear and the supply
pump holder so that the supply gear cannot be rotated.
It’s installed in front plate so that supply pump gear
doesn’t revolve together with a match mark of supply
pump gear and supply pump holder.
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![](../../../img/13/AC503952AB00ENG.png)
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3.A white paint is applied
to the gears having the alignment mark of the supply pump
gear. Confirm the white paint on the supply pump gear is
aligned with the alignment mark of the front plate.
note |
When viewed from the front,
the alignment mark on the supply pump gear
deviates from that on the front plate by about 1
- 2 gears.
|
|
![](../../../img/13/AK602189AB00ENG.png)
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1.
caution |
Be careful not to block the
oil passage with sealant.
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When reusing the sensor, apply the specified sealant
to the threads. Specified sealant: 3M ATD Part
No. 8660 or equivalent
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![](../../../img/13/AK602186AB00ENG.png)
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2.Tighten the engine oil
pressure switch together with the oil filter bracket to the
specified torque, using special tool Oil pressure switch
socket wrench (MB992118). Tightening torque: 19
± 3 N·m
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