Inspecting belt pulley / vibration damper for axial and radial runout - AR03.30-P-1600-01B

BELT PULLEY/VIBRATION DAMPER

Number	Designation			Engine 112, 113.94/96/98	Engine 113.990/991	Engine 113.992
BE03.30-P-1001-02A	Permissible difference at vibration damper	Radial runout	mm	0.5	0.4	0.4
BE03.30-P-1001-02A	Permissible difference at vibration damper	Lateral trueness	mm	0.3	0.4	0.2

BELT PULLEY/VIBRATION DAMPER

Number	Designation			Engine 271	Engine 275, 285
BE03.30-P-1001-02C	Permissible difference at vibration damper	Radial runout	mm	0.3	-
BE03.30-P-1001-02C	Permissible difference at vibration damper	Lateral trueness	mm	0.3	0.3

Fig 1: Identifying Dial Indicator (001 589 53 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Dial Indicator Holder (363 589 02 21 00)

Courtesy of MERCEDES-BENZ USA

Bolt dial gage holder (03) onto timing case cover.
Insert dial gage (04 ) into dial indicator holder (03).
Check lateral trueness
Position tracer pin (05) of dial gage (04) at measuring point (B).
Rotate belt pulley/ vibration damper (62) by hand, inspect lateral trueness.

Fig 3: Checking Lateral Trueness
Courtesy of MERCEDES-BENZ USA
Inspect concentricity
Position tracer pin (05) of dial gage (04) at measuring point (A).
Rotate belt pulley/vibration damper (62) by hand, inspect concentricity.