1125 PISTON WITH RINGS AND BOLTS TECHNICAL DATA (Cooper base 4-door hatchback)
1125 TECHNICAL DATA OVERVIEW
| Piston diameter | ||
| Measure the piston diameter at distance (A) from the lower end of the piston skirt. | Distance (A) to the lower end of the piston skirt | |
| 10 mm | ||
| Nominal dimension of piston diameter | ||
| 81.958 mm... 81.996 mm |
1125 PISTONS WITH RINGS AND PINS W10 / COOPER B16 - TECHNICAL DATA SPECIFICATION
| 1st groove | ||
| End clearance | mm | 0.200...0.360 |
| Contact clearance (wear limit) | mm | 0.800 |
| Axial play | mm | 0.025...0.065 |
| 2nd groove | ||
| End clearance | mm | 0.250...0.460 |
| Contact clearance (wear limit) | mm | 1.000 |
| Axial play | mm | 0.025...0.065 |
| 3rd groove | ||
| End clearance | mm | 0.200...0.580 |
| Contact clearance (wear limit) | mm | 1.000 |
| Axial play | mm | 0.004...0.178 |
1125 PISTONS WITH RINGS AND PINS W10 / COOPER B16 - TECHNICAL DATA SPECIFICATION
| Pistons and pins are matched - only replace together in pairs | ||
| Measuring point "A" (position) | mm | |
| Piston dia. at measuring point "A" | ||
| Original (new dimension) | mm | 76.956...76.974 |
| Piston running clearance | mm | 0.018...0.520 |
| Permissible total play between piston and cylinder (engine operated) | mm | 0.150 |
1125 PISTONS WITH RINGS AND PINS W10 / MINI ONE B16 - TECHNICAL DATA SPECIFICATION
| 1st groove | ||
| End clearance | mm | 0.200...0.360 |
| Contact clearance (wear limit) | mm | 0.800 |
| Axial play | mm | 0.025...0.065 |
| 2nd groove | ||
| End clearance | mm | 0.250...0.460 |
| Contact clearance (wear limit) | mm | 1.000 |
| Axial play | mm | 0.025...0.065 |
| 3rd groove | ||
| End clearance | mm | 0.200...0.580 |
| Contact clearance (wear limit) | mm | 1.000 |
| Axial play | mm | 0.004...0.178 |
1125 PISTONS WITH RINGS AND PINS W10 / MINI ONE B16 - TECHNICAL DATA SPECIFICATION
| Pistons and pins are matched - only replace together in pairs | ||
| Measuring point "A" (position) | mm | |
| Piston dia. at measuring point "A" | ||
| Original (new dimension) | mm | 76.956...76.974 |
| Piston running clearance | mm | 0.018...0.520 |
| Permissible total play between piston and cylinder (engine operated) | mm | 0.150 |