B03.20-0020-06
1 Crankshaft
2 Dial gauge
3 Dial gauge holder
F Concordance radius at the main journals and connecting rod's journals
G Warping at the main journals and connecting rod's journals
B03.20-0019-05
1 Crankshaft
4 Adjustment main bearing cap
5 Main bearings' caps
6 Bearing caps' bolts
7 Micrometer
A Diameters of main journals
B Diameter of the connecting rod's journals
C Width of the adjustment main journal
D Main journal's width
E Connecting rods journals width
H Diameter of the main shells (assembled)
J Width of the adjustment main shells
| Remove | ||
1 | Remove the crankshaft. | ||
| Check | ||
2 | Clean the crankshaft. | ||
3 | Check the general conditions of the crankshaft. | In the case of cracks and/or fissures in the crankshaft, replace it. | |
4 | Check the front seal work region, at the crankshaft. | In the case of wear and/or damages, install or replace the race insert. | |
5 | Check the hardness of the main journals and connecting rod's journals, with an appropriate measuring device. | Replace the crankshaft, if its hardness is below the prescribed one. | |
6 | Check the radial knock (eccentricity) of the crankshaft (1). | Support the crankshaft (1) by its external journals. With the dial gauge (2) and the support (3), measures the radial knocking of the central journal. | |
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7 | Check the main journals and the crankshaft connecting rod's journals (1). | Measure the diameter of the main journals (A) and the connecting rod's journals diameter (B), at two points 90o far one from the other | |
Diameter of main journals (A). | |||
Diameter of the connecting rod's journals (B). | |||
Maximum out-of-round and conicity. | |||
Measure the width of the main journals (C and D) and the connecting rod's journals width (E) | |||
Width of the adjustment main journal (C). | |||
Main journal's width (D). | |||
Connecting rods journal width (E). | |||
Measure the concordance radius (F) and the warping (G) at the main journals and at the connecting rod's journals | |||
Concordance radius at the journals (F). | |||
Journal's warping (G). | |||
Rectify the crankshaft (1), if the values do not meet the specified ones. | |||
8 | Check the internal diameter (H) of the main bearing shells. | In order to obtain the required radial play, the diameter of the shells and crankshaft journals must be within the prescribed tolerance ranges and pertain to the same insert degree. | |
Diameter of main journals (A). | |||
Internal diameter (H) of the assembled main shells. | |||
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9 | Check the width (J) of the axial adjustment main bearing shells. | In order to obtain the required axial play, the width of the shells and crankshaft adjustment journal, must meet the prescribed tolerance ranges and pertain to the same insert degree. | |
Width of the adjustment main journal (C). | |||
Width of the adjustment shells (J). | |||
| Install: | ||
10 | Install the crankshaft. |
Test specifications for crankshaft
Número | Denominação | Engine 476.93 | |||
BE03.20-B-1001-02G | Diameter of main journals | Standard | mm | 103,98...104,00 | |
standard I | mm | 103,88...103,90 | |||
Repair stage I | mm | 103,73...103,75 | |||
Repair stage II | mm | 103,48...103,50 | |||
repair stage III | mm | 103,23...103,25 | |||
repair stage IV | mm | 102,98...103,00 | |||
BE03.20-B-1002-02G | Width of main thrust journal | Standard | mm | 46,000...46,062 | |
Repair stage I | mm | 46,500...46,562 | |||
Repair stage II | mm | 47,000...47,062 | |||
Width of remaining main journals | mm | 46,000...46,250 | |||
BE03.20-B-1003-02G | Diameter of connecting rod journal on crankshaft | Standard | mm | 89,98...90,00 | |
standard I | mm | 89,88...89,90 | |||
Repair stage I | mm | 89,73...89,75 | |||
Repair stage II | mm | 89,48...89,50 | |||
repair stage III | mm | 89,23...89,25 | |||
repair stage IV | mm | 88,98...89,00 | |||
BE03.20-B-1006-02G | Hardness of main journals and connecting rod journals (Rockwell hardness) | Minimum | HRC | 53...59 | |
BE03.20-B-1007-02G | Inside diameter of main journal bearing shells (installed) | Standard | mm | 104,060...104,106 | |
standard I | mm | 103,960...104,006 | |||
Repair stage I | mm | 103,810...103,856 | |||
Repair stage II | mm | 103,560...103,606 | |||
repair stage III | mm | 103,310...103,356 | |||
repair stage IV | mm | 103,060...103,106 | |||
BE03.20-B-1009-02G | Crankshaft eccentricity (crankshaft mounted on the main journals) | Maximum | mm | 0,09 | |
BE03.20-B-1010-02G | Connecting rod journal width | mm | 46,0...46,1 | ||
BE03.20-B-1011-02G | Fillet radius on journals | main | mm | 4,2...4,5 | |
Connecting rods | mm | 3,7...4,0 | |||
BE03.20-B-1012-02G | Main journals and connecting rod outwards curve | mm | 0...0,004 | ||
BE03.20-B-1013-02G | Width of main axial thrust bearing shells | Standard | mm | 45,74...45,81 | |
Repair stage I | mm | 46,24...46,31 | |||
Repair stage II | mm | 46,74...46,81 | |||
BE03.20-B-1014-02G | Maximum out-of-round and taper on main and connecting rod journals | limit for reutilization | mm | 0,02 | |
New or machined shaft | mm | 0,01 | |||
Crankcase, timing case cover, end cover
Número | Denominação | Engine 476.93 | |||
BA01.40-B-1001-01G | Main bearing caps do engine block | First stage | Nm | 100 | |
Second stage | Nm | 200 | |||
Third stage | Nm | 300...330 | |||
Forth stage | degrees | 90...100 | |||
001 589 53 21 00
Dial gauge
363 589 02 21 00
Dial gauge holder
Referenced documents
- ar0320b2570b Remove/install race on the crankshaft
- ar0320b4351g Remove/install crankshaft
- ar0320b435501b Mount crankshaft radially in bearings
- ar0320b435502c Mount crankshaft axially
- ar0320b4465d Machine crankshaft