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9.4.3 Valve clearance – Check and adjustment
Preconditions
☑
Engine is stopped and starting disabled.
☑
Engine coolant temperature is max. 40 °C.
☑
Valves are closed.
Special tools, Material, Spare parts
Designation / Use
Part No.
Qty.
Feeler gage
Y20098771
1
Torque wrench, 60–320 Nm
F30452768
1
Socket wrench, 24 mm
F30039526
1
Ratchet bit
F30027341
1
Engine oil
Preparatory steps
1.
Remove cylinder head cover (→ Page 207).
2.
Install barring device (→ Page 189).
Note:
Pointer (1) is located in the lower opening of
the flywheel housing (arrow).
3.
Use barring device to turn crankshaft in di-
rection of rotation until the OT/A1 mark on
the rear side of the flywheel and pointer (1)
are aligned.
204 | Valve Drive | MS150093/05E 2018-12
TIM-ID: 0000039867 - 003