Piston and Connecting Rod
WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Specification |
|---|---|
| Piston diameter - single grade | 3.6413-3.6408 in (92.49-92.476 mm) |
| Piston-to-cylinder bore clearance | 0.0004-0.0017 in (.01-.044 mm) |
| Piston ring end gap - compression (top, gauge diameter) | 0.0067-0.0106 in (.17-.27 mm) |
| Piston ring end gap - compression (bottom, gauge diameter) | 0.0118-0.0217 in (.3-.55 mm) |
| Piston ring end gap - oil ring (steel rail, gauge diameter) | 0.0059-0.0177 in (.15-.45 mm) |
| Piston ring groove width - compression (top) | 0.0484-0.0492 in (1.23-1.25 mm) |
| Piston ring groove width - compression (bottom) | 0.0602-0.0610 in (1.53-1.55 mm) |
| Piston ring groove width - oil ring | 0.0996-0.1004 in (2.53-2.55 mm) |
| Piston ring width - upper compression ring | 0.0461-0.0469 in (1.17-1.19 mm) |
| Piston ring width - lower compression ring | 0.0579-0.0587 in (1.47-1.49 mm) |
| Piston ring-to-groove clearance (upper and lower compression rings) | 0.0016-0.0031 in (.04-.08 mm) |
| Piston pin bore diameter | 0.9057-0.9058 in (23.004-23.008 mm) |
| Piston pin diameter | 0.9054-0.9055 in (22.997-23 mm) |
| Piston pin length | 2.343 in (59.512 mm) |
| Piston pin-to-piston fit | 0.0002-0.0004 in (.004-.011 mm) |
| Piston-to-connecting rod clearance | 0.1 in (3.3 mm) |
| Connecting rod-to-pin clearance - standard | 0.0003-0.0009 in (.007-.022 mm) |
| Connecting rod pin bore diameter | 0.9058-0.9063 in (23.007-23.019 mm) |
| Connecting rod length (center-to-center) | 6.01 in (152.68 mm) |
| Connecting rod maximum allowed bend | 0.0015 in (.038 mm) |
| Connecting rod maximum allowed twist | 0.0020 in (.05 mm) |
| Connecting rod bearing bore diameter - grade 1 | 2.3569-2.3572 in (59.866-59.872 mm) |
| Connecting rod bearing bore diameter - grade 2 | 2.3572-2.3574 in (59.873-59.879 mm) |
| Connecting rod bearing bore diameter - grade 3 | 2.3575-2.3577 in (59.88-59.886 mm) |
| Connecting rod bearing-to-crankshaft clearance | 0.0008-0.0021 in (.02-.054 mm) |
| Connecting rod side clearance (assembled to crank) - standard | 0.0069-0.0167 in (.175-.425 mm) |
| Connecting rod side clearance (assembled to crank) - service limit | 0.0069-0.0167 in (.175-.425 mm) |