Disassemble, assemble rocker arm unit · ar0500t5541bb · Mercedes-Benz WIS

AR05.00-T-5541BB

Disassemble, assemble rocker arm unit

27.6.01

ENGINE 457.941 in MODELNMB613.368

ENGINE 457.942 in MODEL NMB671.015 /020 /021 /030 /042 /332 /333

ENGINE 457.944 in MODEL NMB613.358 /367 /388

A05.00-0002-11

1 Circlip

2 Washer

3 Rocker arm (exhaust)

4 Rocker arm (inlet)

5 Adjustment screw

6 Lock nut

7 Rocker arm bracket

 	Disassemble/assemble
1	Remove rocker arm assembly		AR05.00-T-5521BB
2	Take off circlips (1)
3	Detach washers (2) and rocker arms (3, 4)	 Assembly: Oil washers (2), rocker arms (3, 4) and shafts at the rocker arm brackets with engine oil. Observe installation position of rocker arm.
4	Inspect circlips (1), washers (2), rocker arms (3, 4), adjusting bolt (5) and locknut (6) for wear and damage	Replace any faulty parts.
		Rocker arm bearing bush inner 	*BE05.30-N-1002-04F
		Rocker arm shaft 	*BE05.30-N-1003-04F
5	Assemble in reverse order

Inspection data of valve timing

Number	Designation		Engine 457.9


BE05.30-N-1002-04F	Rocker arm bearing bush inner Ø when installed	mm	25.005...25.021
BE05.30-N-1003-04F	Rocker arm shaft Ø	mm	24.967...24.980