Piston Ring Measurements
M73/M73TU 5.4L Piston Rings| 1st groove -plain compression ring | -- | -- |
| End clearance | mm | 0.15 - 0.35 |
| End float | mm | 0.020 - 0.055 |
| 2nd groove - taper face ring | -- | -- |
| End clearance | mm | 0.20 - 0.40 |
| End float | mm | 0.020 - 0.055 |
| 3rd groove - oil scraper | -- | -- |
| End clearance | mm | 0.40 - 1.40 |
| End float | mm | does not have to be measured |