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8.2 Valve Drive
8.2.1 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
Y20010128
1
Torque wrench, 20–100 Nm
F30026582
1
Box wrench, 14 mm
F30028346
1
Allen keys, 2-10 mm
F30453050
1
Barring tool
F6790714
1
Preparatory steps
1.
Remove cylinder head cover (→ Page 107).
2.
Install barring tool on crankshaft (→ Page 102).
3.
Rotate crankshaft with barring tool in engine direction of rotation until “OT-A1” (TDC-A1) mark and pointer
are aligned.
Diagram for 10V (two crank-
shaft positions)
104 | Valve Drive | MS150100/06E 2017-08
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