|
Crank Drive, Cylinder Block
Illustration
|
| 1. |
Main bearing journal |
| 2. |
Con-rod bearing journal |
| 3. |
Main Bearing Journal (Guide Bearing) |
| 4. |
Crankshaft colour code |
| 5. |
Bearing shell colour code |
| 6. |
Bearing shell identification |
|
|
Engine
|
|
A 10 XEP
|
|
Crankshaft dimensions
|
|
Ø Main bearing journal
|
Colour code
|
|
|
|
|
1 – 4
|
|
|
|
Standard size
|
mm
|
50.0040 - 50.0105
|
green
|
|
|
|
mm
|
50.0105 - 50.0170
|
brown
|
|
|
Undersize (0.25)
|
mm
|
49.7540 - 49.7605
|
green/blue
|
|
|
|
mm
|
49.7605 - 49.7670
|
brown/blue
|
|
|
Undersize (0.50)
|
mm
|
49.5040 - 49.5105
|
green/white
|
|
|
|
mm
|
49.5105 - 49.5170
|
brown/white
|
|
|
|
|
Ø Con-rod bearing journal
|
|
|
|
|
|
1 - 3
|
|
|
|
Standard size
|
mm
|
42.971 – 42.987
|
-
|
|
|
Undersize (0.25)
|
mm
|
42.721 – 42.737
|
blue
|
|
|
Undersize (0.50)
|
mm
|
42.471 – 42.487
|
white
|
|
|
|
|
Width of main bearing
|
|
|
|
|
|
journal 3
|
|
|
|
|
|
(guide bearing)
|
|
|
|
Standard size
|
mm
|
23.000 - 23.052
|
-
|
|
|
Undersize (0.20)
|
mm
|
23.200 - 23.252
|
-
|
|
|
Undersize (0.40)
|
mm
|
23.400 - 23.452
|
-
|
|
Engine
|
|
A 10 XEP
|
|
Crankshaft bearing
|
|
Lower crankshaft bearing shell
|
|
1,2,4
|
|
Colour code
|
Thickness
|
Identification
|
|
|
|
|
|
GM 985.1
|
|
|
Standard size
|
mm
|
brown
|
1.989 – 1.995
|
328 N
|
|
|
|
mm
|
green
|
1.995 – 2.001
|
329 N
|
|
|
Undersize (0.25)
|
mm
|
brown/blue
|
2.114 – 2.120
|
330 A
|
|
|
|
mm
|
green/blue
|
2.120 – 2.126
|
331 A
|
|
|
Undersize (0.50)
|
mm
|
brown/white
|
2.239 – 2.245
|
332 B
|
|
|
|
mm
|
green/white
|
2.245 – 2.251
|
333 B
|
|
|
|
|
Upper crankshaft bearing shell
|
|
|
Standard size
|
mm
|
brown
|
1.989 – 1.995
|
328 N
|
|
|
|
mm
|
green
|
1.995 – 2.001
|
329 N
|
|
|
Undersize (0.25)
|
mm
|
brown/blue
|
2.114 – 2.120
|
330 A
|
|
|
|
mm
|
green/blue
|
2.120 – 2.126
|
331 A
|
|
|
Undersize (0.50)
|
mm
|
brown/white
|
2.239 – 2.245
|
332 B
|
|
|
|
mm
|
green/white
|
2.245 – 2.251
|
333 B
|
|
Permissible crankshaft bearing play
|
|
Z 10 XE
|
mm
|
0.005 - 0.018
|
|
Z 10 XEP
|
mm
|
0.007 - 0.036
|
|
Engine
|
|
A 10 XEP
|
|
3 crankshaft bearings
|
|
Lower crankshaft bearing shell
|
|
(guide bearing)
|
|
Colour code
|
Thickness
|
Identification
|
|
|
|
|
|
GM 985.1
|
|
|
Standard size
|
mm
|
brown
|
1.989 – 1.995
|
337 N
|
|
|
|
mm
|
green
|
1.995 – 2.001
|
338 N
|
|
|
Undersize (0.25)
|
mm
|
brown/blue
|
2.114 – 2.120
|
339 A
|
|
|
|
mm
|
green/blue
|
2.120 – 2.126
|
340 A
|
|
|
Undersize (0.50)
|
mm
|
brown/white
|
2.239 – 2.245
|
341 B
|
|
|
|
mm
|
green/white
|
2.245 – 2.251
|
342 B
|
|
|
|
|
Upper crankshaft bearing shell
|
|
|
Standard size
|
mm
|
brown
|
1.989 – 1.995
|
337 N
|
|
|
|
mm
|
green
|
1.995 – 2.001
|
338 N
|
|
|
Undersize (0.25)
|
mm
|
brown/blue
|
2.114 – 2.120
|
339 A
|
|
|
|
mm
|
green/blue
|
2.120 – 2.126
|
340 A
|
|
|
Undersize (0.50)
|
mm
|
brown/white
|
2.239 – 2.245
|
341 B
|
|
|
|
mm
|
green/white
|
2.245 – 2.251
|
342 B
|
|
Engine
|
|
A 10 XEP
|
|
3 crankshaft bearings
|
|
Colour code
|
Width
|
Identification
|
|
(guide bearing)
|
|
|
|
|
|
|
Standard size
|
mm
|
green – brown
|
22.850 - 22.900
|
-
|
|
|
|
|
|
|
|
|
|
Undersize (0.25)
|
mm
|
brown/blue
|
23.050 - 23.100
|
-
|
|
|
|
|
green/blue
|
|
|
|
|
Undersize (0.50)
|
mm
|
brown/white
|
23.250 - 23.300
|
-
|
|
|
|
|
green/white
|
|
|
|
Engine
|
|
A 10 XEP
|
|
Con-rod bearing
|
|
Lower con-rod bearing shell
|
|
|
|
Colour code
|
Thickness
|
Identification
|
|
|
|
|
|
GM 985.3
|
|
|
Standard size
|
mm
|
-
|
1.490 – 1.500
|
352 N
|
|
|
Undersize (0.25)
|
mm
|
blue
|
1.615 – 1.625
|
353 A
|
|
|
Undersize (0.50)
|
mm
|
white
|
1.740 – 1.750
|
354 B
|
|
|
|
|
Upper con-rod bearing shell
|
|
|
Standard size
|
mm
|
-
|
1.490 – 1.500
|
352 N
|
|
|
Undersize (0.25)
|
mm
|
blue
|
1.615 – 1.625
|
353 A
|
|
|
Undersize (0.50)
|
mm
|
white
|
1.740 – 1.750
|
354 B
|
|
Permissible con-rod bearing play
|
|
Z 10 XE
|
mm
|
0.013 - 0.049
|
|
Z 10 XEP
|
mm
|
0.013 - 0.065
|
Crankshaft drive, cylinder block (contd.)
Illustration
|
| 1. |
Index – identification of cylinder bore |
| 2. |
Cylinder Bore |
| 3. |
Double bevelled ring with spiral-type expander |
| 4. |
Tapered compression ring or double trapezoidal
ring |
| 5. |
Rectangular compression ring |
| 6. |
Piston diameter |
|
|
Engine
|
|
A 10 XEP
|
|
Ø Cylinder bore
|
|
|
|
|
Standard size
|
|
|
|
|
|
Index 99
|
mm
|
73.385 - 73.395
|
|
|
|
Index 00
|
mm
|
|
73.395 - 73.405
|
|
|
|
Index 01
|
mm
|
|
73.405 - 73.415
|
|
|
Oversize
1)
|
|
|
|
|
|
Index 9 + 0.5
|
mm
|
73.885 - 73.895
|
|
|
|
Index 0 + 0.5
|
mm
|
73.895 - 73.905
|
|
|
|
Index 1 + 0.5
|
mm
|
73.905 - 73.915
|
|
Ø Piston
|
|
|
|
|
Standard size
|
|
|
|
|
|
Index 99
|
mm
|
73.345 - 73.355
|
|
|
|
Index 00
|
mm
|
73.355 - 73.365
|
|
|
|
Index 01
|
mm
|
73.365 - 73.375
|
|
|
Oversize
|
|
|
|
|
|
Index 9 + 0.5
|
mm
|
73.845 - 73.855
|
|
|
|
Index 0 + 0.5
|
mm
|
73.855 - 73.865
|
|
|
|
Index 1 + 0.5
|
mm
|
73.865 - 73.875
|
|
Piston play
|
mm
|
0.03 - 0.05
|
|
Piston projection
|
mm
|
-0.55
|
|
Engine
|
|
A 10 XEP
|
|
Piston Rings
|
|
|
|
|
Rectangular compression ring
|
|
|
|
|
|
Height
|
mm
|
1.17 - 1.19
|
|
|
|
Gap
|
mm
|
0.30 - 0.45
|
|
|
|
Vertical play
|
mm
|
0.04 - 0.08
|
|
|
Tapered compression ring
|
|
|
|
|
|
Height
|
mm
|
1.17 - 1.19
|
|
|
|
Gap
|
mm
|
0.30 – 0.50
|
|
|
|
Vertical play
|
mm
|
0.03 - 0.07
|
|
|
Oil scraper ring
|
|
|
|
|
|
Height
|
mm
|
1.84 - 1.98
|
|
|
|
Gap
|
mm
|
0.25 – 0.75
|
|
|
|
Vertical play
|
mm
|
0.03 - 0.19
|
|
Engine
|
|
Z 10 XEP
|
|
Piston Pins
|
|
|
|
|
Length
|
mm
|
50.6 - 51.4
|
|
|
Diameter
|
mm
|
17.995 - 18.000
|
|
|
Bearing
|
|
shrunk into con-rod
|
|
|
Play
|
|
|
|
|
|
in piston
|
mm
|
0.006 - 0.017
|
|
|
|
in con-rod
|
mm
|
-0.032 - -0.015
|
1 ) After re-boring the old index must be
invalidated and the new oversizing index must be embossed.
|
