|
Use the following special tools to remove the camshaft sprocket.
- Front hub and flange yoke holder (MB990767)
- Pin (MD998719)
|
|
Loosen the cylinder head bolts in two or three steps in the order of the numbers shown in the illustration, and remove the cylinder head assembly.
|
|
|
1.
| caution |
Be careful that no foreign material gets into the cylinder, coolant passages or oil passages. Engine damage may result.
|
Use a scraper to clean the gasket surface of the cylinder head assembly and cylinder block.
|
|
|
2.Install the cylinder head gasket and cylinder head assembly to the cylinder block.
|
|
3.Check in the following procedure before reusing the cylinder head bolt.
(1)
Measure the outside diameter "A".
(2)
Measure the smallest outside diameter "B" within the range "X" shown in the illustration.
(3)
If the difference of outside diameter of thread exceeds the limit, replace the cylinder head bolt.
Limit: 0.1mm
|
|
4.Tighten the cylinder head bolts to the specified torque in the order shown in the illustration (in two or three cycles).
Tightening torque: 45 ± 2 N·m
|
|
5.
| caution |
- If the cylinder head bolt is turned less than 150 to 154 degrees, proper fastening performance may not be achieved. Be sure to turn the cylinder head bolt exactly 150 to 154 degrees.
- If the cylinder head bolt is overtightened, loosen the cylinder head bolt completely and then retighten it by repeating the tightening procedure from step 3.
|
Using special tool angle gauge (MB991614), tighten the cylinder head bolt another 150 to 154 degrees again.
|
|
1.Use the following special tools in the same way as during removal to install the camshaft sprocket.
- Front hub and flange yoke holder (MB990767)
- Pin (MD998719)
2.Tighten the camshaft sprocket mounting bolt to the specified torque.
Tightening torque: 90 ± 10 N·m
|
].)
)
)
)
)
)
)