11 00 Engine in general N12 COOPER
| Cylinder | | 4 |
|---|
| Bore | Mm | 77.0 |
| Stroke | Mm | 85.8 |
| Effective displacement | Cm 3 | 1598 |
| Compression ratio | 1 | 11 |
| Idle speed | RPM | 720... 820 |
| Rated speed | RPM | 4000 |
| Max. permissible engine speed | RPM | 6500 |
| Compression pressure (maximum difference between cylinders) | Bar | |
ENGINE TECHNICAL DATA SPECIFICATION - N12 COOPER
11 00 Engine in general N12
| Cylinder | | 4 |
|---|
| Bore | Mm | 77.0 |
| Stroke | Mm | 75.0 |
| Effective displacement | Cm 3 | 1397 |
| Compression ratio | 1 | 11 |
| Idle speed | RPM | 720... 820 |
| Rated speed | RPM | 4000 |
| Max. permissible engine speed | RPM | 6500 |
| Compression pressure (maximum difference between cylinders) | Bar | |
ENGINE TECHNICAL DATA SPECIFICATION - N12
11 11 Engine Block, Cylinder Crankcase N12
| Bore dia. (1) | Mm | 77.000... 77.014 |
|---|
| Permitted out-of-round of cylinder bore (1) | Mm | 0.005 |
| Permitted conicity of cylinder bore (1) | Mm | 0.01 |
| Permissible total wear tolerance between piston and cylinder (engine operated) | Mm | 0.10 |
| (1) new condition |
ENGINE TECHNICAL DATA SPECIFICATION - CYLINDER CRANKCASE N12
| Bore dia. (1) | Mm | 77.000... 77.014 |
|---|
| Permitted out-of-round of cylinder bore (1) | Mm | 0.005 |
| Permitted conicity of cylinder bore (1) | Mm | 0.01 |
| Permissible total wear tolerance between piston and cylinder (engine operated) | Mm | 0.10 |
| (1) new condition |
ENGINE TECHNICAL DATA SPECIFICATION - ENGINE BLOCK, CYLINDER CRANKCASE N12
11 21 Crankshaft and Bearings N12
| Diameters of conrod bearing journals | Mm | 44.975... 44.991 |
|---|
| Radial play of conrod bearings | Mm | 0.021... 0.063 |
| Radial play of conrod bearings (wear limit) | Mm | 0.080 |
ENGINE TECHNICAL DATA SPECIFICATION - CRANKSHAFT AND BEARINGS N12
11 21 Crankshaft and Bearings N12 COOPER
| Diameters of main journals | Mm | 44.981... 45.000 |
|---|
| Radial play of main bearings | Mm | 0.013... 0.023 |
| Radial play of main bearings (wear limit) | Mm | 0.070 |
| Axial play of crankshaft | Mm | 0.015... 0.050 |
| Axial play of crankshaft (wear limit) | Mm | 0.30 |
ENGINE TECHNICAL DATA SPECIFICATION - CRANKSHAFT AND BEARINGS N12 COOPER
11 21 Crankshaft and Bearings N12 ONE
| Diameters of main journals | Mm | 44.981... 45.000 |
|---|
| Radial play of main bearings | Mm | 0.013... 0.023 |
| Radial play of main bearings (wear limit) | Mm | 0.070 |
| Axial play of crankshaft | Mm | 0.015... 0.050 |
| Axial play of crankshaft (wear limit) | Mm | 0.30 |
ENGINE TECHNICAL DATA SPECIFICATION - CRANKSHAFT AND BEARINGS N12 ONE
11 24 Connecting Rods and Bearings N12
| Conrod bushing: Inside diameter | Mm | 17.007... 17.020 |
|---|
| Running clearance between small-end bushing and piston pin | Mm | 0.014... 0.025 |
| Wear limit | Mm | 0.05 |
ENGINE TECHNICAL DATA SPECIFICATION - CONNECTING RODS AND BEARINGS N12
11 25 Pistons with Rings and Pins N12 COOPER
| Piston and pin are paired to each other - replace together only. | | |
|---|
| Measuring point "A" (position) | Mm | 10 |
| Piston diameter at measuring point "A" | | |
| Original (new dimension) | Mm | 76.941... 76.995 |
| Piston running clearance | Mm | 0.041... 0.064 |
| Permissible total wear tolerance between piston and cylinder (engine operated) | Mm | 0.10 |
ENGINE TECHNICAL DATA SPECIFICATION - PISTONS WITH RINGS AND PINS N12 COOPER
11 25 Pistons with Rings and Pins N12 ONE
| Piston and pin are paired to each other - replace together only. | | |
|---|
| Measuring point "A" (position) | Mm | 10 |
| Piston diameter at measuring point "A" | | |
| Original (new dimension) | Mm | 76.941... 76.995 |
| Piston running clearance | Mm | 0.041... 0.064 |
| Permissible total wear tolerance between piston and cylinder (engine operated) | Mm | 0.10 |
ENGINE TECHNICAL DATA SPECIFICATION - PISTONS WITH RINGS AND PINS N12 ONE
11 40 Oil Supply N12
| Oil change volume with oil filter | Ltr. | 4.2 |
ENGINE TECHNICAL DATA SPECIFICATION - OIL SUPPLY N12
11 41 Oil Pump with Strainer and Drive N12
| Oil pressure at idle (engine at normal operating temperature) | Min bar | 0.7 |
|---|
| Control pressure at 3000 RPM (engine at normal operating temperature) | Bar | 1.5...3.0 |
ENGINE TECHNICAL DATA SPECIFICATION - OIL PUMP WITH STRAINER AND DRIVE N12
