Determine crankshaft bearing radial play · ar0320w429102b · Mercedes-Benz WIS

AR03.20-W-4291-02B

Determine crankshaft bearing radial play

Modification notes

22.2.07

Crankshaft main bearing inner Ø when installed, standard

Engine 541.9 EURO standardⅡ As of engine no. 098132 Engine 541.9 EURO standard Ⅲ

Engine 542.9 EURO standard II as of engine no. 098132 Engine 542.9 EURO standard Ⅲ

*BE03.20-N-1012-02C

Check values for a crankcase

Number	Designation			Engine 541.9, 542.9


BE01.40-N-1002-02C	Central bolt for main bearing cap	Thread Ø	M	18
		Length of shank when new	mm	173
		Permissible shank length	mm	176

Check values for a crankshaft

Number	Designation			Engine 541.9 EURO standardⅡ up to engine no. 098131	Engine 542.9 EURO standardⅡ up to engine no. 098131


BE03.20-N-1001-02C	Main bearing journal Ø main bearing journal width (except main bearing fitted bearing journal)	Ø standard width	mm mm	107.980 - 108.000 42.000 - 42.160	107.980 - 108.000 42.000 - 42.160
		Ø deviation 0.10 on width	mm mm	107.880 - 107.900 42.000 - 42.160	107.880 - 107.900 42.000 - 42.160
		Ø deviation 0.25, width	mm mm	107.730 - 107.750 42.000 - 42.160	107.730 - 107.750 42.000 - 42.160
		Ø deviation 0.50 on width	mm mm	107.480 - 107.500 42.000 - 42.160	107.480 - 107.500 42.000 - 42.160
		Ø deviation 0.75 on width	mm mm	107.230 - 107.250 42.000 - 42.160	107.230 - 107.250 42.000 - 42.160
		Ø deviation 1.00 on width	mm mm	106.98 - 107.000 42.000 - 42.160	106.98 - 107.000 42.000 - 42.160
BE03.20-N-1002-02C	Main bearing journal Ø fitted bearing journal width	Ø standard width standard	mm mm	107.980 - 108.000 42.000 - 42.062	107.980 - 108.000 42.000 - 42.062
		Ø deviation 0.10 width standard	mm mm	107.880 - 107.900 42.000 - 42.062	107.880 - 107.900 42.000 - 42.062
		Ø deviation 0.25 width deviation 0.50	mm mm	107.730 - 107.750 42.500 - 42.562	107.730 - 107.750 42.500 - 42.562
		Ø deviation 0.50 width deviation 0.50	mm mm	107.480 - 107.500 42.500 - 42.562	107.480 - 107.500 42.500 - 42.562
		Ø deviation 0.75 width deviation 1.00	mm mm	107.230 - 107.250 43.000 - 43.062	107.230 - 107.250 43.000 - 43.062
		Ø deviation 1.00 Width deviation 1.00	mm mm	106.98 - 107.000 43.000 - 43.062	106.98 - 107.000 43.000 - 43.062
BE03.20-N-1012-02C	Crankshaft main bearing inner Ø when installed	Standard	mm	108.056 to 108.102	108.056 to 108.102
		Deviation 0.10	mm	107.956 to 108.002	107.956 to 108.002
		Deviation 0.25	mm	107.806 to 107.852	107.806 to 107.852
		Deviation 0.50	mm	107.556 to 107.602	107.556 to 107.602
		Deviation 0.75	mm	107.306 to 107.352	107.306 to 107.352
		Deviation 1.00	mm	107.056 to 107.102	107.056 to 107.102
BE03.20-N-1015-02C	Main bearing radial play		mm	0.077 to 0.143	0.077 to 0.143

Check values for a crankshaft

Number	Designation			Engine 541.9 EURO standardⅡ As of engine no. 098132 Engine 541.9 EURO standardⅢ	Engine 542.9 EURO standard II as of engine no. 098132 Engine 542.9 EURO standard Ⅲ


BE03.20-N-1001-02C	Main bearing journal Ø main bearing journal width (except main bearing fitted bearing journal)	Ø standard width	mm mm	107.980 - 108.000 42.000 - 42.160	107.980 - 108.000 42.000 - 42.160
		Ø deviation 0.10 on width	mm mm	107.880 - 107.900 42.000 - 42.160	107.880 - 107.900 42.000 - 42.160
		Ø deviation 0.25, width	mm mm	107.730 - 107.750 42.500 - 42.660	107.730 - 107.750 42.500 - 42.660
		Ø deviation 0.50 on width	mm mm	107.480 - 107.500 42.500 - 42.660	107.480 - 107.500 42.500 - 42.660
		Ø deviation 0.75 on width	mm mm	107.230 - 107.250 43.000 - 43.160	107.230 - 107.250 43.000 - 43.160
		Ø deviation 1.00 on width	mm mm	106.980 - 107.000 43.000 - 43.160	106.980 - 107.000 43.000 - 43.160
BE03.20-N-1002-02C	Main bearing journal Ø fitted bearing journal width	Ø standard width standard	mm mm	107.980 - 108.000 42.000 - 42.062	107.980 - 108.000 42.000 - 42.062
		Ø deviation 0.10 width standard	mm mm	107.880 - 107.900 42.000 - 42.062	107.880 - 107.900 42.000 - 42.062
		Ø deviation 0.25 width deviation 0.50	mm mm	107.730 - 107.750 42.500 - 42.562	107.730 - 107.750 42.500 - 42.562
		Ø deviation 0.50 width deviation 0.50	mm mm	107.480 - 107.500 42.500 - 42.562	107.480 - 107.500 42.500 - 42.562
		Ø deviation 0.75 width deviation 1.00	mm mm	107.230 - 107.250 43.000 - 43.062	107.230 - 107.250 43.000 - 43.062
		Ø deviation 1.00 width deviation 1.00	mm mm	106.98 - 107.000 43.000 - 43.062	106.98 - 107.000 43.000 - 43.062
BE03.20-N-1012-02C	Crankshaft main bearing inner Ø when installed	Standard	mm	108.069 to 108.118	108.069 to 108.118
		Deviation 0.10	mm	107.969 to 108.018	107.969 to 108.018
		Deviation 0.25	mm	107.819 to 107.869	107.819 to 107.869
		Deviation 0.50	mm	107.569 to 107.618	107.569 to 107.618
		Deviation 0.75	mm	107.319 to 107.369	107.319 to 107.369
		Deviation 1.00	mm	107.069 to 107.118	107.069 to 107.118
BE03.20-N-1015-02C	Main bearing radial play		mm	0.077 to 0.143	0.077 to 0.143

 Crankcase, timing case cover, end cover

Number	Designation			Engine 541.9, 542.9


BA01.40-N-1013-01D	Central bolt, main bearing cap to crankcase	Stage 1	Nm	320
		Stage 2	°	90
BA01.40-N-1016-01D	Side bolt, main bearing cap to crankcase	Stage 1	Nm	120
		Stage 2	°	90

Determine crankshaft bearing radial play

001 589 53 21 00

Dial indicator

W03.20-1064-01

 Perform measuring procedure and work sequence for all main bearings and perform the same procedures on the main fitted bearing.

1 Clean main bearing journals of crankshaft (1) with a chamois leather.

2 Measure main bearing journal Ø of crankshaft (1) using micrometer in three measuring directions (D, E, F) offset by about 60°. Calculate a mean value using the three measured values.

 If a measured value for Ø of main bearing journal lies outside of tolerance, crankshaft (1) must be machined or replaced.

3 Assign main bearing shells according to mean value of the main bearing journal Ø.

 Observe machining stage (whether standard or deviation). All main bearing journal Ø must have the same machining step, if necessary machine or replace the crankshaft (1).

Shown on main fitted bearing

4 Clean main bearing shells (2, 5), their mounting in crankcase (8), main bearing cap (3) and main fitted bearing cap (4) with a chamois leather and visually inspect for wear and damage.

 In case of wear or damage, main bearing shell (2, 5) can be replaced if crankshaft is not damaged and all main bearing journal Ø of the crankshaft are within tolerance.

5 Assign and insert main bearing shells (2, 5) for main bearing points.

 The locking lugs must be in planned grooves (arrows). Main bearing shell (5) must be fitted into oil groove in crankcase (8). The oil hole in main bearing shell (5) must coincide with the oil hole in crankcase (8).

W03.20-1077-03

W03.20-0025-01

Shown on engine 541.9

6 Measure shank lengths of central bolts (6) for main bearing cap.

 Replace corresponding main bolt (6) if shank length has been exceeded.

7 First screw down main bearing cap (3) and main fitted bearing cap (4) using central bolt (6) then tighten with side bolts (7) on crankcase.

 All main bearing caps (3) and main fitted bearing caps (4) have dowel pins and are marked with numbers (e.g. xx-1). They must be installed in ascending order of the numbers, beginning from the front. The main bearing cap (3) and main fitted bearing cap (4) must not get muddled up with each other. Observe tightening sequence and tightening torque stages.

8  Attach dial indicator to quick connect calipers for inside measurements, set using outside micrometer to the smallest dimension of the respective machining stage of the crankshaft main bearing inner Ø (observe preloading of 5 mm) and set scale of  dial indicator to "0".

W03.20-0019-01

Shown on the main bearing

9 Measure main bearing inside Ø using the quick connect calipers for inside measurements along the three measuring directions (A, B, C). Begin with measuring direction (A) 90° and then measure in each remaining measuring direction (B, C) offset by about 60°.

 If one of three measured main bearing inside Ø lies outside of the tolerance, repeat measuring procedure using new main bearing shells.

10 Take mean value of three main bearing inside Ø. Take calculated mean value of main bearing journal Ø from calculated mean value of main bearing inside Ø.

 Example: 108.099 mm - 107.990 mm = 0.109 mm.
No reworking should take place on main bearing shells. Main bearing shells are supplied ready for installation and also in deviations for repair work.

W03.20-0025-01

Shown on engine 541.9

11 Remove main bearing cap (3) and main fitted bearing cap (4) again.