Crank Drive, Cylinder Block
Illustration
- Main bearing journal
- Con-rod bearing journal
- 3 main bearing journals (guide bearing)
- Crankshaft colour code
- Bearing shell colour code
- Bearing shell identification
Crank Drive, Cylinder Block
Illustration
| 1 and 3 | Index - identification of cylinder bore |
|---|
| 2 | Index-identification of crankshaft bearing shell mount in cylinder block |
Crank Drive, Cylinder Block
| Engine | | C 14 SEL, X 14 XE, C 16 XE, |
|---|
| | C 16 SEL, X 16 XE |
| Crankshaft dimensions | | � Main bearing journal 1 - 5 | Colour code |
| Standard size | mm | 54.980 - 54.997 | brown |
| | mm | 54.980 - 54.997 | green |
| Undersize (0.25) | mm | 54.730 - 54.747 | brown/blue |
| | mm | 54.730 - 54.747 | green/blue |
| Undersize (0.50) | mm | 54.482 - 54.495 | brown/white |
| | mm | 54.482 - 54.495 | green/white |
| | | � Con-rod journal 1 - 4 | |
| 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 |
| | | 3 wide main bearing journals | |
| | | (guide bearing) | |
| Standard size | mm | 26.000 - 26.052 | - |
| Undersize (0.20) | mm | 26.200 - 26.252 | - |
| Undersize (0.40) | mm | 26.400 - 26.452 | - |
Crank Drive, Cylinder Block
| Engine | | C 14 SEL, X 14 XE, C 16 XE, |
|---|
| | C 16 SEL, X 16 XE |
| Crankshaft bearing | | Lower crankshaft bearing shell |
| 1, 2, 4, 5 | | Colour code | Thickness | Identification GM 400 |
| Standard size | mm | brown | 1.989 - 1.995 | 221 N |
| | mm | green | 1.995 - 2.001 | 201 N |
| Undersize (0.25) | mm | brown/blue | 2.114 - 2.120 | 222 A |
| | mm | green/blue | 2.120 - 2.126 | 202 A |
| Undersize (0.50) | mm | brown/white | 2.239 - 2.245 | 223 B |
| | mm | green/white | 2.245 - 2.251 | 203 B |
| | | Upper crankshaft bearing shell |
| Standard size | mm | brown | 1.989 - 1.995 | 221 N |
| | mm | green | 1.995 - 2.001 | 201 N |
| Undersize (0.25) | mm | brown/blue | 2.114 - 2.120 | 222 A |
| | mm | green/blue | 2.120 - 2.126 | 202 A |
| Undersize (0.50) | mm | brown/white | 2.239 - 2.245 | 223 B |
| | mm | green/white | 2.245 - 2.251 | 203 B |
| Perm. crankshaft bearing clearance | | 0,015 - 0,041 |
Crank Drive, Cylinder Block
| Engine | | C 14 SEL, X 14 XE, C 16 XE, |
|---|
| | C 16 SEL, X 16 XE |
| 3 crankshaft bearings | | Lower crankshaft bearing shell |
| (guide bearing) | | Colour code | Thickness | Identification GM 400 |
| Standard size | mm | brown | 1.989 - 1.995 | 225 N |
| | mm | green | 1.995 - 2.001 | 205 N |
| Undersize (0.25) | mm | brown/blue | 2.114 - 2.120 | 226 A |
| | mm | green/blue | 2.120 - 2.126 | 206 A |
| Undersize (0.50) | mm | brown/white | 2.239 - 2.245 | 227 B |
| | mm | green/white | 2.245 - 2.251 | 207 B |
| | | Upper crankshaft bearing shell |
| Standard size | mm | brown | 1.989 - 1.995 | 225 N |
| | mm | green | 1.995 - 2.001 | 205 N |
| Undersize (0.25) | mm | brown/blue | 2.114 - 2.120 | 226 A |
| | mm | green/blue | 2.120 - 2.126 | 206 A |
| Undersize (0.50) | mm | brown/white | 2.239 - 2.245 | 227 B |
| | mm | green/white | 2.245 - 2.251 | 207 B |
Crank Drive, Cylinder Block
| Engine | | C 14 SEL, X 14 XE, C 16 XE, |
|---|
| | C 16 SEL, X 16 XE |
| 3 wide main crankshaft bearings (guide bearing) | | Colour code | Thickness | Identification |
| Standard size | mm | green - brown | 25.850 - 25.900 | - |
| | | | | |
| Undersize (0.25) | mm | brown/blue | 26.050 - 26.100 | - |
| | | green/blue | | |
| Undersize (0.50) | mm | brown/white | 26.250 - 26.300 | - |
| | | green/white | | |
Crank Drive, Cylinder Block
| Engine | | C 14 SEL, X 14 XE, C 16 XE, |
|---|
| | C 16 SEL, X 16 XE |
| Con-rod bearing | | Lower con-rod bearing shell |
| | Colour code | Thickness | Identification GM 985.3 |
| Standard size | mm | - | 1.485 - 1.497 | 264 N |
| Undersize (0.25) | mm | blue | 1.610 - 1.622 | 265 A |
| Undersize (0.50) | mm | white | 1.735 - 1.747 | 266 B |
| | | Upper con-rod bearing shell |
| Standard size | mm | - | 1.485 - 1.497 | 264 N |
| Undersize (0.25) | mm | blue | 1.610 - 1.622 | 265 A |
| Undersize (0.50) | mm | white | 1.735 - 1.747 | 266 B |
| Perm. con-rod play | mm | 0.019 - 0.071 |
Crank Drive, Cylinder Block
Illustration
- Index-identification of cylinder bore
- Cylinder Bore
- Double bevelled ring with spiral-type expander
- Tapered compression ring or double trapezoidal ring
- Rectangular compression ring
- Piston diameter
Crank Drive, Cylinder Block
| Engine | | C 14 SEL, X 14 XE | C 16 XE, C 16 SEL |
|---|
| | | X 16 XE |
| � Cylinder Bore | | | |
| Standard size | | | |
| | Index 8 | mm | 77.575 - 77.585 | 78.975 - 78.985 |
| | Index 99 | mm | 77.585 - 77.595 | 78.985 - 78.995 |
| | Index 00 | mm | 77.595 - 77.605 | 78.995 - 79.005 |
| | Index 01 | mm | 77.605 - 77.615 | 79.005 - 79.015 |
| | Index 02 | mm | 77.615 - 77.625 | 79.015 - 79.025 |
| Oversize | | | |
| | Index 7 + 0.5 | mm | 78.065 - 78.075 | 79.465 - 79.475 |
| � Piston | | | |
| Standard size | | | |
| | Index 8 | mm | 77.555 - 77.565 | 78.955 - 78.965 |
| | Index 99 | mm | 77.565 - 77.575 | 78.965 - 78.975 |
| | Index 00 | mm | 77.575 - 77.585 | 78.975 - 78.985 |
| | Index 01 | mm | 77.585 - 77.595 | 78.985 - 78.995 |
| | Index 02 | mm | 77.595 - 77.605 | 78.995 - 79.005 |
| Oversize | | | |
| | Index 7 + 0.5 | mm | 78.045 - 78.055 | 79.445 - 79.455 |
| Piston clearance | mm | 0.01 - 0.03 |
| Piston projection | mm | 0 |
Crank Drive, Cylinder Block
| Engine | | C 14 SEL, X 14 XE | C 16 XE, C 16 SEL |
|---|
| | | X 16 XE |
| Piston Rings | | |
| Rectangular compression ring | | |
| | Height | mm | 1.50 | 1.20 |
| | Gap | mm | 0.30 - 0.50 |
| | Vertical play | mm | 0.02 - 0.04 |
| Tapered compression ring | | |
| | Height | mm | 1.50 |
| | Gap | mm | 0.30 - 0.50 |
| | Vertical play | mm | 0.04 - 0.06 |
| Oil scraper ring | | |
| | Height | mm | 2.50 |
| | Gap | mm | 0.40 - 1.40 |
| | Vertical play | mm | 0.01 - 0.03 |
| Ring gap offset | � | 120 |
Crank Drive, Cylinder Block
| Engine | | C 14 SEL, X 14 XE, C 16 XE, |
|---|
| | C 16 SEL, X 16 XE |
| Piston Pins | | |
| Length | mm | 55 |
| Diameter | mm | 17.997 - 18.000 |
| Bearing | | shrink-fit in con-rod |
| Play | | |
| | in piston | mm | 0.007 - 0.010 |
| | in con-rod | mm | 0 |
