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 413 (ENGINE - 5.0L 32V TI-VCT)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 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Specification |
|---|---|
| Piston diameter - single grade | 3.6599 -3.6604 in (92.961 -92.975 mm) |
| Piston-to-cylinder bore clearance (at grade size) (before Grafal coating) | 0.0010 -0.0023 in (.025 -.059 mm) |
| Piston-to-cylinder bore clearance (at grade size) (with grafal coating) | -0.0002 -0.0011 in (-.005 -.029 mm) |
| Piston ring end gap - top | 0.0079 -0.0118 in (.2 -.3 mm) |
| Piston ring end gap - intermediate | 0.0197 -0.0315 in (.5 -.8 mm) |
| Piston ring end gap -- oil control | 0.0059 -0.0177 in (.15 -.45 mm) |
| Piston ring groove width - top | 0.0480 -0.0492 in (1.22 -1.25 mm) |
| Piston ring groove width - intermediate | 0.0480 -0.0488 in (1.22 -1.24 mm) |
| Piston ring groove width-- oil control | 0.0799 -0.0807 in (2.03 -2.05 mm) |
| Piston ring width - top | 0.0461 -0.0469 in (1.17 -1.19 mm) |
| Piston ring width - intermediate | 0.0461 -0.0469 in (1.17 -1.19 mm) |
| Piston ring-to-groove clearance - top | 0.0012 -0.0031 in (.03 -.08 mm) |
| Piston ring-to-groove clearance - intermediate | 0.0012 -0.0028 in (.03 -.07 mm) |
| Piston pin bore diameter | 0.8663 -0.8665 in (22.004 -22.01 mm) |
| Piston pin diameter | 0.8660 -0.8661 in (21.997 -22 mm) |
| Piston pin length | 2.390 -2.402 in (60.7 -61 mm) |
| Piston pin-to-piston fit (clearance) | 0.0002 -0.0005 in (.004 -.013 mm) |
| Connecting rod-to-pin clearance | 0.0001 -0.0007 in (.003 -.018 mm) |
| Connecting rod pin bore diameter | 0.8663 -0.8667 in (22.003 -22.015 mm) |
| Connecting rod length (center-to-center) | 5.93 in (150.7 mm) |
| Connecting rod maximum allowed bend | 0.0015 in (.038 mm) |
| Connecting rod maximum allowed twist | 0.0020 in (.05 mm) |
| Connecting rod bearing-to-crankshaft clearance | 0.0011 -0.0027 in (.028 -.069 mm) |
| Connecting rod side clearance (as assembled to crank) -- standard play | 0.0128 in (.325 mm) |
| Connecting rod side clearance (as assembled to crank) -- max. play | 0.0197 in (.5 mm) |
RENDER: 1.0x
NO RELATED
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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.