Mount crankshaft axially - AR03.20-P-4355-02L

CHECK VALUES FOR CRANKSHAFT BEARING CLEARANCE

Number	Designation			Engine 137	Engines 275.95, 285.95	Engines 275.98, 285.98
BE03.20-P-1001-04E	Main bearing play	radial when new	mm	0.028...0.052	0.022...0.047	0.018...0.058
BE03.20-P-1001-04E	Main bearing play	axial when new	mm	0.10...0.260	0.100...0.254	0.100...0.254

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

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1001-12A	Quick calipers for internal measurements
WH58.30-Z-1012-12A	Setting gage for micrometer

Note width of fitted bearing (5th main bearing) at upper crankcase section and note value.
Measure width of fitted bearing at crankshaft, note.
Determine thickness of thrust washer.

Fig 3: Measuring Width Of Crankshaft Bearing
Courtesy of MERCEDES-BENZ USA
Insert thrust plates (5).
The oil grooves (arrows) must be pointing toward the contact surface of the crankshaft and be oiled.

Fig 4: Locating Oil Grooves Of Thrust Plate
Courtesy of MERCEDES-BENZ USA
Measure axial bearing play, adjust if necessary.

Fig 5: Measuring Axial Bearing Play
Courtesy of MERCEDES-BENZ USA