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 393 (ENGINE - 3.3L DURATEC-V6)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 | 3.5569 -3.5575 in (90.346 -90.36 mm) |
| Piston-to-cylinder bore clearance | 0.0016 -0.0029 in (.04 -.074 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) | 0.0059 -0.0177 in (.15 -.45 mm) |
| Piston ring groove width - compression (top) | 0.0406 -0.0413 in (1.03 -1.05 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 | 0.0382 -0.0390 in (.97 -.99 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 -23.007 mm) |
| Piston pin diameter | 0.9054 -0.9055 in (22.997 -23 mm) |
| Piston diameter (DN) height from top of the piston | 1.398 in (35.5 mm) |
| Piston pin length | 2.1654 -2.1772 in (55 -55.3 mm) |
| Piston pin-to-piston fit | 0.0000 -0.0005 in (.0004 -.012 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 grade | 2.3570 -2.3576 in (59.869 -59.883 mm) |
| Connecting rod bearing-to-crankshaft clearance | 0.0012 -0.0031 in (.031 -.078 mm) |
| Connecting rod side clearance (assembled to crank) - standard | 0.0118 in (.3 mm) |
| Connecting rod side clearance (assembled to crank) - service limit (max play) | 0.0167 in (.425 mm) |
| Torque Specifications |
|---|
| Engine oil pan drain plug - 26 Nm (19 lb-ft) |
| Engine oil filter - Stage 1: Install to initial gasket contact |
| Engine oil filter - Stage 2: Tighten 3/4 to 1 turn |
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.