7.4 Valve Drive
7.4.1 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 gauge
Y20010128
1
Torque wrench, 20–100 Nm
F30026582
1
Ratchet adapter
F30027340
1
Measuring device
Y4341106
1
Preparatory steps
1.
Remove cylinder head cover (→ Page 97).
2.
Install barring tool (→ Page 84).
3.
Disassemble fuel injector of cylinder A1
(→ Page 103).
4.
Screw the measuring device into the fuel in‐
jector orifice.
5.
Turn the crankshaft, checking the dial
gauge, in the direction of engine rotation
until the piston stands at the breakover
point on the dial gauge display: Cylinder is
in TDC position.
MS150025/02E 2012-10 | Task Description | 95
TIM-ID: 0000004351 - 001