11 25 Pistons with Rings and Pins
WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2017 BMW M6, 2017 BMW 650i xDrive, 2017 BMW 650i, 2017 BMW 640i xDrive, and 2017 BMW 640i. However, it is still accessible from the selected car via links, so may be relevant.
PISTONS WITH RINGS AND PINS SPECIFICATION
| 1st groove | ||
| End clearance | mm | 0.15... 0.30 |
| Axial play | mm | 0.020... 0.060 |
| 2nd groove | ||
| End clearance | mm | 0.30... 0.50 |
| Axial play | mm | 0.015... 0.060 |
| 3rd groove | ||
| End clearance | mm | cant be measured |
| Axial play | mm | cant be measured |
PISTONS WITH RINGS AND PINS SPECIFICATION
| 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 | 88.97... 88.99 |
| Repair stage (0.08) | mm | 89.05... 89.08 |
| Oversize (0.25) | mm | 89.22... 89.25 |
| Oversize (0.50) | mm | 89.47... 89.50 |
| Piston installation clearance (piston new) | mm | 0.00...0.03 |
| Piston installation clearance (piston worn) | mm | 0.02...0.05 |
| Permissible total wear tolerance between piston and cylinder (engine operated) |
mm | 0.15 |