![](../../../img/11/AK900646AC00ENG.png)
|
1.Remove the upper mounting
bolt of the timing belt auto-tensioner. 2.
caution |
The auto-tensioner rotates
centring on the flange bolt due to the rod
thrust, so please make sure your finger is not
trapped.
|
Loosen the lower mounting bolt of the auto-tensioner
slowly and slide the auto-tensioner slightly. Remove the rod
from the tensioner arm. 3.Remove the lower
mounting bolt of the auto-tensioner.
|
|
1.Before the timing belt is
removed, align the timing marks of the camshaft sprocket and
crankshaft sprocket with the No.1 at the Top Dead centre of
the compression stroke.
|
![](../../../img/11/AK600824AA00ENG.png)
|
Mark the belt running direction for
reference in reinstallation.
note |
If there is oil or water on
any part, check the front case oil seal,
camshaft oil seal, and water pump for
leaks.
|
note |
After the timing belt is
removed, do not turn the crankshaft sprocket and
the camshaft sprocket.
|
|
![](../../../img/11/AK601718AB00ENG.png)
|
caution |
Because of the shallow hexagon
hole of the hexagon socket head bolt, firmly
insert the tool and carefully work not to damage
the hexagon hole.
|
Remove the idler pulley using a hexagon wrench with
8 mm width across flats.
|
![](../../../img/11/AK600895AB00ENG.png)
|
Use special tools End yoke holder
(MB990767) and Pins (MD998719) to prevent the camshaft
sprocket from turning, and then loosen the camshaft sprocket
bolt.
|
![](../../../img/11/AK600895AB00ENG.png)
|
Use special tools End yoke holder
(MB990767) and Pins (MD998719) to prevent the camshaft
sprocket from turning, and then tighten the camshaft
sprocket bolt. Tightening torque: 90 ± 10
N·m
|
![](../../../img/11/AK600812AB00ENG.png)
|
1.Clean the hole in the
crankshaft sprocket. 2.Clean and degrease the
mating surfaces of the crankshaft sprocket.
note |
Degreasing is necessary to
prevent decrease in friction on the mating
surfaces.
|
3.Install the crankshaft sprocket to the
crankshaft.
|
![](../../../img/11/AK601718AB00ENG.png)
|
caution |
Because of the shallow hexagon
hole of the hexagon socket head bolt, firmly
insert the tool and carefully work not to damage
the hexagon hole.
|
Install the idler pulley using a hexagon wrench with
8 mm width across flats.
|
![](../../../img/11/AK600823AB00ENG.png)
![](../../../img/11/AK600822AB00ENG.png)
|
1.Check the timing marks of
the crankshaft sprocket and the camshaft sprocket are
aligned with the No.1 at the Top Dead centre of the
compression stroke. If they are not, align the timing marks
again, paying attention to the interference between the
valve and the piston. 2.Install the timing belt on
each sprocket in the following sequence. (1)
Install the timing belt on the crankshaft sprocket and then
on the water pump pulley, while tightening it to prevent
slackness. (2)
Line up the timing marks of the left bank camshaft
sprockets. (3)
Install the timing belt on the idler pulley, while taking up
the slack. (4)
Install the timing belt on the right bank camshaft
sprocket. (5)
Install the timing belt on the tensioner
pulley. 3.Check to see that the timing marks of
all the sprockets are in a alignment. 4.Pull out
the pin of the auto-tensioner. 5.Remove the
setting pin that has been inserted into the timing belt
auto-tensioner.
|
![](../../../img/11/AC903122AB00ENG.png)
|
6.Use special tool
crankshaft wrench (MD998716), turn the crankshaft clockwise
twice to align the timing marks.
|
![](../../../img/11/AC605909AB00ENG.png)
|
7.Wait for at least five
minutes, then check that the timing belt auto-tensioner
pushrod extends within the standard value
range. Standard value (A): 9.1 - 13.4
mm 8.If not, repeat the operation in steps
1 to 7 above. 9.Check again that the timing marks
of the each sprockets are aligned.
|