Piston and Connecting Rod
WARNING: This page is about a different car, the 2020 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Specification |
|---|---|
| Piston diameter - single grade | 3. 3601 -3. 3606 in (85. 346 -85. 36 mm) |
| Piston-to-cylinder bore clearance | 0. 0016 -0. 0028 in (. 04 -. 072 mm) |
| Piston ring end gap - compression (top, gauge diameter) | 0. 0091 -0. 0130 in (. 23 -. 33 mm) |
| Piston ring end gap - compression (bottom, gauge diameter) | 0. 0157 -0. 0236 in (. 4 -. 6 mm) |
| Piston ring end gap - oil ring (steel rail, gauge diameter) | 0. 0079 -0. 0197 in (. 2 -. 5 mm) |
| Piston ring groove width - compression (top) | 0. 0484 -0. 0492 in (1. 23 -1. 25 mm) |
| Piston ring groove width - compression (bottom) | 0. 0402 -0. 0409 in (1. 02 -1. 04 mm) |
| Piston ring groove width - oil ring | 0. 0799 -0. 0807 in (2. 03 -2. 05 mm) |
| Piston ring width - upper compression ring | 0. 0461 -0. 0469 in (1. 17 -1. 19 mm) |
| Piston ring width - lower compression ring | 0. 0382 -0. 0390 in (. 97 -. 99 mm) |
| Piston ring-to-groove clearance (upper and lower compression rings) | 0. 0016 -0. 0031 in (. 04 -. 08 mm) |
| Piston pin bore diameter | 0. 8663 -0. 8665 in (22. 004 -22. 009 mm) |
| Piston pin diameter | 0. 8660 -0. 8661 in (21. 997 -22 mm) |
| Piston pin length | 2. 0177 -2. 0295 in (51. 25 -51. 55 mm) |
| Piston pin-to-piston fit | 0. 0002 -0. 0005 in (. 004 -. 012 mm) |
| Piston-to-connecting rod clearance | 0. 1181 in (3 mm) |
| Connecting rod-to-pin clearance - standard | 0. 0007 -0. 0012 in (. 017 -. 03 mm) |
| Connecting rod pin bore diameter | 0. 8668 -0. 8668 in (22. 017 -22. 017 mm) |
| Connecting rod length (center-to-center) | 5. 6677 -5. 6709 in (143. 96 -144. 04 mm) |
| Connecting rod maximum allowed bend | 0. 0008 in (. 02 mm) |
| Connecting rod maximum allowed twist | 0. 0016 in (. 04 mm) |
| Connecting rod bearing bore diameter | 2. 3397 -2. 3402 in (59. 428 -59. 442 mm) |
| Connecting rod bearing-to-crankshaft clearance | 0. 0017 -0. 0035 in (. 042 -. 088 mm) |
| Connecting rod side clearance (assembled to crank) - standard | 0. 0049 -0. 0148 in (. 125 -. 375 mm) |
| Connecting rod side clearance (assembled to crank) - service limit | 0. 0049 -0. 0148 in (. 125 -. 375 mm) |