Piston Measurements
M52 2.5L/2.8L Piston| M52 2.5L Piston Dia. | -- | -- |
| Measuring point "A" (position 90 degs to pin from lower edge of skirt) | mm | 10 |
| Diameter (from point "A") | -- | -- |
| Std. | mm | 83.980 (+/- 0.009) |
| Running clearance | mm | 0.01 - 0.04 |
| Max. total wear clearance piston / cylinder (engine operated) | mm | 0.15 |
| -- | -- | -- |
| M52 2.8L Piston Dia. Piston and Pin are a matched set only replace together. | -- | -- |
| Measuring point "A" (position 90 degs to pin from lower edge of skirt) | mm | 14 |
| Diameter (from point "A") | -- | -- |
| Std. | mm | 83.980 (+/-0.009) |
| 1st oversize Alum. block Only permissible for aluminum block with cast iron sleeves. | -- | -- |
| 1st over size Only permissible for cast iron engine block | -- | -- |
| 2nd oversize Only permissible for cast iron engine block. | -- | -- |
| Running clearance | mm | 0.01 - 0.04 |
| Max. total wear clearance piston / cylinder (engine operated) | mm | 0.15 |