Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2021EDGE SE, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 623 (ENGINE - 2.7L ECOBOOST (238KW/324PS))SPECIFICATIONSPISTON AND CONNECTING ROD
2021 Ford Edge SE, 4WD
Piston and Connecting Rod
2021 Ford Edge SE, 4WDSECTION Piston and Connecting Rod
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Specification |
|---|---|
| Piston diameter - single grade | 3.2648 -3.2654 in (82.926 -82.94 mm) |
| Piston-to-cylinder bore clearance | 0.0024 -0.0036 in (.06 -.092 mm) |
| Piston ring end gap - compression (top, gauge diameter) | 0.0110 -0.0130 in (.28 -.33 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) | 0.0484 -0.0492 in (1.23 -1.25 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 | 0.0461 -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 -22.008 mm) |
| Piston pin diameter | 0.8659 -0.8661 in (21.995 -22 mm) |
| Piston pin length | 1.9646 -1.9764 in (49.9 -50.2 mm) |
| Piston pin-to-piston fit | 0.0002 -0.0005 in (.004 -.013 mm) |
| Piston-to-connecting rod clearance | 0.1772 in (4.5 mm) |
| Connecting rod-to-pin clearance - standard | 0.0006 -0.0012 in (.015 -.03 mm) |
| Connecting rod pin bore diameter | 0.8667 -0.8671 in (22.015 -22.025 mm) |
| Connecting rod length (center-to-center) | 5.7465 -5.7496 in (145.96 -146.04 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) |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.