Mount crankshaft axially · ar0320w435502c · Mercedes-Benz WIS

AR03.20-W-4355-02C

Mount crankshaft axially

Modification notes

22.2.07

Main bearing fitted bearing shell inside Ø fitted bearing journal width, Ø standard width standard

Check values for a crankshaft

Number	Designation			Engine 457.9 standard EURO III	Engine 457.9 EURO IV standard with code MS4 EURO V standard with code MS5


BE03.20-N-1004-02M	Main bearing journal Ø fitted bearing journal width	Ø standard width standard	mm mm	103.980 - 104.000 46.000 - 46.062	103.980 - 104.000 46.000 - 46.062
		Ø deviation 0.10 width standard	mm mm	103.880 - 103.900 46.000 - 46.062	103.880 - 103.900 46.000 - 46.062
		Ø deviation 0.25 width deviation 0.50	mm mm	103.730 - 103.750 46.500 - 46.562	103.730 - 103.750 46.500 - 46.562
		Ø deviation 0.50 width deviation 0.50	mm mm	103.480 - 103.500 46.500 - 46.562	103.480 - 103.500 46.500 - 46.562
		Ø deviation 0.75 width deviation 1.00	mm mm	103.230 - 103.250 47.000 - 47.062	103.230 - 103.250 47.000 - 47.062
		Ø deviation 1.00 width deviation 1.00	mm mm	102.980 - 103.000 47.000 - 47.062	102.980 - 103.000 47.000 - 47.062
BE03.20-N-1006-02M	Main bearing fitted bearing shell inside Ø fitted bearing shells width	Ø standard width standard	mm	104.060 - 104.106 45.74 - 45.81	104.060 - 104.106 45.74 - 45.81
		Ø deviation 0.10 width standard	mm	103.960 - 103.006 45.74 - 45.81	103.960 - 104.006 45.74 - 45.81
		Ø deviation 0.25 width deviation 0.50	mm	103.810 - 103.856 46.24 - 46.31	103.810 - 103.856 46.24 - 46.31
		Ø deviation 0.50 width deviation 0.50	mm	103.560 - 103.606 46.24 - 46.31	103.560 - 103.606 46.24 - 46.31
		Ø deviation 0.75 width deviation 1.00	mm	103.310 - 103.356 46.74 - 46.81	103.310 - 103.356 46.74 - 46.81
		Ø deviation 1.00 width deviation 1.00	mm	103.060 - 103.106 46.74 - 46.81	103.060 - 103.106 46.74 - 46.81
BE03.20-N-1007-02M	Main bearing axial play		mm	0.230 to 0.370	0.230 to 0.370

Dial indicator

001 589 53 21 00

W03.20-1072-01

1 Clean connecting rod journals on crankshaft (1) with a chamois leather.

2  Attach dial indicator to  quick caliper for internal measurements and set using an  outside micrometer to the smallest dimension of the fitted bearing journal width (H).

3 Measure fitted bearing journal width (H) at the crankshaft (1) using the  quick caliper for internal measurements.

 The crankshaft (1) must be machined or installed if the measurement is outside the tolerance.

W03.20-1096-01

4 Clean installed fitted bearing shells (5) with a chamois leather.

5 Measure fitted bearing width (J) of fitted bearing shells (5) using the  outside micrometer.

 The fitted bearing journal width (H) and the fitted bearing width (J) must have the same machining stage (standard or deviation).
The fitted bearing shells (5) must be replaced if worn if the main fitted bearing journal Ø and the fitted bearing journal width (H) of the crankshaft (1) are within tolerance.

6 Deduct fitted bearing journal width (H) from fitted bearing width (J).

 The result is the axial play of the fitted bearing.
Example: 45.780 mm - 46.050 mm = 0.270 mm.
If the permissible axial play of the fitted bearing is not maintained repeat the measuring procedure again with new fitted bearing shells (5); machine or replace crankshaft (1) if necessary.

7 Remove main fitted bearing cap (7).

 The fitted bearing shells (5) must not be reworked. The fitted bearing shells (5) are delivered ready to install ex works and for repair purposes, also in deviations.