Test specifications for crankshaft main bearing shells
Number | Designation | Engine 601.943 | Engine 602.980/981/982/983/984/985 | ||
BE03.20-N-1001-03A | Main bearing shells standard dimension for crankcase and bearing cap dia. 58.00 mm | Replacement part additional number (color coding blue) | 52 | 52 | |
Bearing shell thickness | mm | 2.255-2.260 | 2.255-2.260 | ||
BE03.20-N-1002-03A | Main bearing shells standard dimension for crankcase and bearing cap 58.00 mm | Replacement part additional number (color coding yellow) | 54 | 54 | |
Bearing shell thickness | mm | 2.260-2.265 | 2.260-2.265 | ||
BE03.20-N-1003-03A | Main bearing shells standard dimension for crankcase and bearing cap 58.00 mm | Replacement part additional number (color coding red) | 56 | 56 | |
Bearing shell thickness | mm | 2.265-2.270 | 2.265-2.270 | ||
BE03.20-N-1004-03A | Main bearing shells standard dimension for bearing cap 58.00 mm | Replacement part additional number (color coding white) | 57 | 57 | |
Bearing shell thickness | mm | 2.270-2.275 | 2.270-2.275 | ||
BE03.20-N-1005-03A | Main bearing shells standard dimension for bearing cap 58.00 mm | Replacement part additional number (color coding purple) | 58 | 58 | |
Bearing shell thickness | mm | 2.275-2.280 | 2.275-2.280 | ||
Test specifications for crankshaft bearing clearance
Number | Designation | Engine 601.943 | Engine 602.980/981/ | ||
BE03.20-N-1001-04A | Main bearing play | radial When new | mm | 0.03-0.05 | 0.03-0.05 |
radial Wear limit | mm | 0.08 | 0.08 | ||
axial When new | mm | 0.10-0.25 | 0.10-0.25 | ||
axial Wear limit | mm | 0.3 | 0.3 | ||
BE03.20-N-1002-04A | Connecting rod bearing play | radial | mm | 0.020-0.065 | 0.020-0.065 |
Test specifications for crankcase
Number | Designation | Engine | ||
BE01.40-N-1001-02D | Crankshaft bearing | Basic bore diameter | mm | 62.500 to 62.519 |
Basic bore width at fit bearing | mm | 19.979 to 20.000 | ||
Permissible out-of-roundness and conicity of basic bore | mm | 0.02 | ||
Test specifications for crankcase
Number | Designation | Engine | ||
BE01.40-N-1001-02D | Crankshaft bearing | Basic bore diameter | mm | 62.500 to 62.519 |
Basic bore width at fit bearing | mm | 19.979 to 20.000 | ||
Permissible out-of-roundness and conicity of basic bore | mm | 0.02 | ||
Check values for a crankshaft
Number | Designation | Engine 601.943 | Engine 602.980/ 982/983/984/985 | ||
BE03.20-N-1001-02D | Crankshaft bearing journal dia. | Standard size | mm | 57.950 to 57.965 | 57.950 to 57.965 |
Repair stage 1 | mm | 57.700 to 57.715 | 57.700 to 57.715 | ||
Repair stage 2 | mm | 57.450 to 57.465 | 57.450 to 57.465 | ||
Repair stage 3 | mm | 57.200 to 57.215 | 57.200 to 57.215 | ||
Repair stage 4 | mm | 56.950 to 56.965 | 56.950 to 56.965 | ||
BE03.20-N-1002-02D | Connecting rod journal | Standard size | mm | 47.950 to 47.965 | 47.950 to 47.965 |
Repair stage 1 | mm | 47.700 to 47.715 | 47.700 to 47.715 | ||
Repair stage 2 | mm | 47.450 to 47.465 | 47.450 to 47.465 | ||
Repair stage 3 | mm | 47.200 to 47.215 | 47.200 to 47.215 | ||
Repair stage 4 | mm | 46.950 to 46.964 | 46.950 to 46.965 | ||
Connecting rod
Number | Designation | Engine | Engine 602.980/982/983/984/985 | ||
BA03.10-N-1001-01A | Connecting rod bolt | Stage 1 | Nm | 42 | 42 |
Stage 2 | ° | 90 | 90 | ||
Crankshaft
Number | Designation | Engine 601.942/ | Engine 602.980/ | ||
BA03.20-N-1001-01A | Bolts for crankshaft bearing caps | Stage 1 | Nm | 55 | 55 |
Stage 2 | ° | 90 | 90 | ||
001 589 32 21 00
Dial indicator
P03.20-0217-01
Mounting main bearing radially
1 Install crankshaft bearing caps
The crankshaft bearing caps are installed to fit on the side of the crankcase. The fit is displaced 0.5 mm with the result that the bearing caps can be installed only in one position. If installed correctly, the lug (arrow) on the crankshaft bearing cap points to the left when viewed in direction of travel (inlet side).
The crankshaft bearing caps are machined together with the crankcase and must not be interchanged.
P03.20-0246-01
P03.20-0247-01
2 Measure crankshaft bearing bore in direction A, B and C at two levels (out-of-roundness).
If a crankshaft bearing bore exceeds the specified size or is out-of-round, dress bearing cap at its contact surface up to max. 0.02 mm on a dressing plate.
3 Measure crankshaft bearing bore in direction A, note measurement obtained, example: 62.51 mm.
4 Take off crankshaft bearing caps.
P03.20-0248-01
5 Measure crankshaft bearing journal dia. example: 57.95 mm
6 Determine bearing shell thickness
Example:
Bearing hole 62.51 mm
Crankshaft journal dia. -57.95 mm
_____________________
4.55 mm
Radial bearing play: -0.04 mm
Check values table "crankshaft bearing play". ______________________
4.51 mm : 2
Bearing shell thickness 2.255 mm
Only one bearing shell thickness is available for repair size crankshaft.
The crankshaft should be reground to match the stated repair bearing shells + radial play.
7 Match bearing shells
Example:
Bearing shell thickness 2.255 mm Table "Test values for crankshaft bearing shells"
Upper bearing shell "blue"
Lower bearing shell "blue"
If the thickness of the bearing shell differs, install thicker bearing shell in bearing cap.
S03.20-3019-01
Mounting connecting rod bearing radially
8 Insert connecting rod bearing shells into connecting rod bearing cap, fit on connecting rod bearing cap with connecting rod bearing shells and tighten connecting rod screws to the tightening torque.
9 Measure connecting rod bearing in direction of connecting rod and note the measurement obtained.
S03.20-3020-01
10 Measure connecting rod bearing journal and determine connecting rod bearing radial play.
Determining connecting rod bearing radial play
Measurement connecting rod bearing
- Measurement connecting rod bearing journal
= Radial stroke bearing play
The connecting rod bearing shells are available only in one bearing shell thickness.
For repair size crankshaft, the connecting rod bearing journals should be re-ground to match existing repair bearing shells + radial play.
11 Remove connecting rod bearing screws and remove connecting rod bearing cap.