11 25 Pistons with Rings and Pins S65
WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. 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 | 0.40... 0.60 |
| Axial play | mm | 0.020... 0.060 |
| 3rd groove | ||
| End clearance | mm | 0.1... 0.3 |
| Axial play | mm | cannot be measured |
PISTONS WITH RINGS AND PINS SPECIFICATION
| Piston and pin are paired to each other - replace together only. | ||
| Measuring point "A" (position) | mm | 14 |
| Piston diameter at measuring point "A" | ||
| Original (new dimension) | mm | 91.990 ± 0.01 |
| Oversize (new dimension) | mm | 92.190 ± 0.01 |
| Piston installation clearance (piston new) | mm | 0.000... 0.032 |
| Piston installation clearance (piston worn) | mm | 0.020... 0.047 |
| Permissible total wear tolerance between piston and cylinder (engine operated) | mm | 0.050 |