1998 SSANGYONG MUSSO Workshop Repair Manual

OM600 ENGINE MECHANICAL 1B3-83
CRANKSHAFT
Preceding Work : Removal of the end cover
Removal of the piston
Removal of the crankshaft sprocket
3 Crankshaft Main Bearing Shells (Upper)
4 Trust Bearings (Upper)
5 Crankshaft
6 Crankshaft Main Bearing Shells (Lower)7 Thrust Bearings (Lower)
8 Crankshaft Bearing Cap
9 Crankshaft Bearing Cap (Fit Bearing)
10 12-sided Stretch Bolts.......................55Nm + 90°
Tools Required
001 589 53 21 00 Dial Gauge
363 589 02 21 00 Dial Gauge Holder
366 589 00 21 05 Extension

1B3-84 OM600 ENGINE MECHANICAL
3 Crankshaft Main Bearing Shells (Upper)
4 Thrust Bearings (Upper)
5 Crankshaft
6 Crankshaft Main Bearing Shells (Lower)
7 Thrust Bearings (Lower)A Radial Bearings
B Radial and Axial Bearings (Thrust Bearing)
Notice
The gaps between the bearing shell and bore and
between the bearing shell and journal are different
each other. Refer to service data.
Thrust Washer and Bearing Arrangement
OM662LA Engine

OM600 ENGINE MECHANICAL 1B3-85
3 Crankshaft Main Bearing Shells (Upper)
4 Thrust Bearings (Upper)
5 Crankshaft
6 Crankshaft Main Bearing Shells (Lower)
7 Thrust Bearings (Lower)A Radial Bearings
B Radial and Axial Bearings (Thrust Bearing)
Notice
The gaps between the bearing shell and bore and
between the bearing shell and journal are different
each other. Refer to service data.
OM661LA Engine

1B3-86 OM600 ENGINE MECHANICAL
24.500 - 24.533
24.600 - 24.633
24.700 - 24.733
24.900 - 24.933
25.000 - 25.033New
Limit
New
Limit Radial clearances
Axial clearancesCrankshaft bearing
journal diameter Crankshaft Standard and Repair Sizes
Standard size 50.950 - 57.965
journal width
24.500 - 24.533
24.600 - 24.633
24.700 - 24.733
24.900 - 24.933
25.000 - 25.033
-Thrust bearing
journal diameter
47.950 - 47.965 Thrust bearing
47.700 - 47.715
47.450 - 47.650
47.200 - 47.215
46.950 - 46.965 57.500 - 57.715
57.450 - 57.465
57.200 - 57.215
56.950 - 56.965 Repair size 1
Repair size 2
Repair size 3
Repair size 4
Bearing Clearances
Thrust bearingCrankshaft bearing
0.026 - 0.068
Max. 0.080
-
- 0.027 - 0.051
Max. 0.070
0.100 - 0.254
Max. 0.300
Matching Fit Bearing Journal Width to Thrust Bearings
Fit bearing journal width Thrust bearings thickness
2.15
2.20
2.25
2.35
2.40
Notice
lMeasure crankshaft axial clearance and adjust with proper thrust Bearing.
lThe same thickness of washer must be installed on both sides of the fit bearing.mm
mm
mm

OM600 ENGINE MECHANICAL 1B3-87
bearing shell Matching Crankshaft Bearing Shells to Basic Bearing Bore in Crankshaft
Matching Crankshaft Bearing Shells to Basic Bearing Journal of Crankshaft
Marking of basic bearing bore in lowerColor code of relevant crankshaft
parting surface
1 punch mark or blue
2 punch marks or yellow
3 punch marks or redbearing shell
Blue or white-blue
Yellow or white-yellow
Red or white-red
Marking of bearing journals on crank websColor code of relevant crankshaft
Blue or white-blue
Yellow or white-blue
Red or white-blueBlue or white-blue
Yellow or white-yellow
Red or white-red

1B3-88 OM600 ENGINE MECHANICAL
Removal & Installation Procedure
1. Remove the bearing cab bolt.
2. Remove the bearing caps (8).
Notice
The crankshaft bearing caps are marked with stamped
numbers. Remove the bearing cap from the vibration
damper side.
3. Remove the crankshaft bearing caps (9) and lower thrust
bearings (7).
4. Remove the lower thrust bearings (6) from the bearing cap
(9).
5. Remove the crankshaft (5).
6. Remove the upper thrust bearings(4).
7. Remove the upper bearing shells (3) from crankcase.

OM600 ENGINE MECHANICAL 1B3-89
14. Measure crankshaft bearing journal diameter (F).
Notice
When measured in A and B, the runout should not exceed
0.010mm.
8. Thoroughly clean the oil gallery.
9. Select a proper new bearing shells with reference to table.
10. Coat the new bearing shells with oil and insert into the
crankcase and into the crankshaft bearing caps.
Notice
Do not mix up upper and lower crankshaft bearing shells.
11. Install the bearing caps according to marking and tighten
the 12-sided stretch bolts.
Tightening Torque 35 - 40 Nm
Notice
No. 1 is vibration damper side.
12. Measure crankshaft bearing diameters (E).
Extension 366 589 00 21 05
13. Measure at 3 points (A, B and C) and if the average value
of B and C is less than A’s value, the average value of B
and C is the mean value and if more than A’s value, A’s
value is the mean value.

1B3-90 OM600 ENGINE MECHANICAL
15. Measure radial clearance of crankshaft bearing (G).
Clearance ‘G’0.027 - 0.051mm
Notice
If ‘G’ is out of standard, replace the bearing shells and
adjust the radial clearance of crankshaft bearing.
Example)Measured value ‘E’ = 57.700mm
Measured value ‘F’ = 57.659mm
Clearance ‘G’ = 0.041mm
16. Remove the crankshaft bearing cap.
17. Measure width of thrust bearing journal (H) and adjust with
proper thrust bearings (see table).
Notice
The same thickness of thrust washers should be installed
on both sides of the thrust bearing.
18. Coat the upper thrust bearing (4) with oil and insert into
the crankcase so that the oil grooves are facing the crank
webs (arrow).
19. Coat the lower thrust bearing (7) with oil and insert into the
crankshaft bearing cap so that the oil grooves are facing
the crank webs (arrow).
Notice
The retaining lugs should be positioned in the grooves
(arrow).