Piston and Connecting Rod
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Specification |
|---|---|
| Piston diameter (DN) height from top of piston | 1.56 in (39.5 mm) |
| Piston diameter - single grade | 3.6396 -3.6402 in (92.446 -92.46 mm) |
| Piston-to-cylinder bore clearance | 0.0016 -0.0029 in (.04 -.074 mm) |
| Piston ring end gap - compression (top, gauge diameter) | 0.0079 -0.0118 in (.2 -.3 mm) |
| Piston ring end gap - compression (bottom, gauge diameter) | 0.0157 -0.0276 in (.4 -.7 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) | 0.0602 -0.0610 in (1.53 -1.55 mm) |
| Piston ring groove width -- compression (bottom) | 0.0406 -0.0413 in (1.03 -1.05 mm) |
| Piston ring groove width - oil ring | 0.0799 -0.0807 in (2.03 -2.05 mm) |
| Piston ring width - upper compression ring | 0.0579 -0.0587 in (1.47 -1.49 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 | 0.9057 -0.9058 in (23.004 -23.008 mm) |
| Piston pin diameter | 0.9054 -0.9055 in (22.997 -23 mm) |
| Piston pin length | 2.3071 -2.3189 in (58.6 -58.9 mm) |
| Piston pin-to-piston fit | 0.0002 -0.0004 in (.004 -.011 mm) |
| Connecting rod-to-pin clearance - standard | 0.0001 -0.0007 in (.003 -.018 mm) |
| Connecting rod pin bore diameter | 0.9056 -0.9061 in (23.003 -23.015 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 - single bore grade | 2.3570 -2.3576 in (59.869 -59.883 mm) |
| Connecting rod bearing-to-crankshaft clearance | 0.0008 -0.0021 in (.02 -.054 mm) |
| Connecting rod side clearance (assembled to crank) - service limit | 0.0167 in (.425 mm) |