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

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ENGINE 651

MODIFICATION NOTES

30.10.15

Screw/bolt, crankshaft bearing cap

Engine 651

BA03.20-P-1001-01K

TEST SPECIFICATIONS FOR CRANKSHAFT BEARING CLEARANCE

Number	Designation			Engine 651
BE03.20-P-1001-04A	Crankshaft bearing clearance (when new)	Radial measurement when new	mm	0, 028...0, 063
		radial wear limit	mm	-
		Axial measurement when new	mm	0, 110...0, 300
		Axial wear limit	mm	-

CRANKSHAFT BEARING CAP

Number	Designation			Engine 651
BA03.20-P-1001-01K	Bolt, crankshaft bearing cap	Stage 1	Nm	-
		Stage 2	Nm	45
		Stage 3	∠°	180

Fig 1: Identifying Dial Gauge (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

Measure width of fitted bearing at crankcase and at balance shaft housing and note it down.
Measure width of fitted bearing at crankcase and note it down.
Determine thickness of thrust washer.
In the crankcase and balance shaft housing equally thick thrust plates must always be used on both sides.

Fig 3: Measuring Fitted Bearing Width At Crankcase And Balance Shaft Housing
Courtesy of MERCEDES-BENZ USA
Install thrust plates .
The oil grooves (arrows) must be pointing toward the contact surface of the crankshaft and be oiled. The anti-twist lock is positioned against the thrust plate in the balance shaft housing.

Fig 4: Installing Thrust Plates
Courtesy of MERCEDES-BENZ USA
Measure axial bearing play, adjust if necessary .

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