Set valve clearance

AP05.30-T-0560CA

Set valve clearance

28.10.2019

Engine

457.941 in model NMB613.368

Engine

457.944 in model NMB613.367

1

Adjustment screw

2

Jam nut

A

Check of exhaust valve clearances

E

Check of intake valve clearances

1

Detach cylinder head cover



On model 613.368

AR01.20-T-5014CA



On model 613.367

AR01.20-T-5014BA

2

Select method for adjusting valve clearance

General information on adjusting valve clearance

AH05.30-N-1000-01BB

 Inspect or adjust valve clearance when engine is cold. Wait at least 30 minutes after switching off the engine, even if the engine has operated only for a short time, in order to ensure that the engine is evenly warmed through.

3

Attach cranking device for engine and turn crankshaft according to selected adjustment method



AR03.30-T-1600-03BB

 Bolt, inspection hole cap to timing case

*BA01.60-N-1001-01H

 Cranking device

*407589006300

4

Check valve clearance (A, E) and adjust

AP05.30-T-0560-01CA

 Commercially available devices/tools:
Feeler gage

Valve clearance

*BE05.30-N-1001-01J

 Jam nut to rocker arm adjustment screw

*BA05.00-N-1002-01G

 Valve adjusting wrench

*422589001100

5

Remove cranking device



AR03.30-T-1600-03BB

 Bolt, inspection hole cap to timing case

*BA01.60-N-1001-01H

 Cranking device

*407589006300

6

Attach cylinder head cover



On model 613.368

AR01.20-T-5014CA



On model 613.367

AR01.20-T-5014BA

Check values for valves

Number

Designation

Engine 457.9

BE05.30-N-1001-01J

Valve clearance

Inlet

mm

0,40

Outlet

mm

0,60

 Timing case

Number

Designation

ENGINE 457.9

BA01.60-N-1001-01H

Bolt, inspection hole cap to timing case

Nm

25

 Engine timing - general

Number

Designation

Engine 457.9

BA05.00-N-1002-01G

Jam nut to rocker arm adjustment screw

Nm

50