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 626 (ENGINE - 3.0L POWER STROKE DIESEL)SPECIFICATIONSCYLINDER HEAD
2021 Ford Edge SE, 4WD
Cylinder Head
2021 Ford Edge SE, 4WDSECTION Cylinder Head
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 |
|---|---|
| Cylinder head gasket surface flatness | Flat within 0.08 mm (0.003 in) length end to end, area 150 mm (5.9 in) x 150 mm (5.9 in) (or full width) should be less than 0.05 mm (0.002 in) |
| For piston protrusion of 0.552-0.603 mm (0.0217-0.0237 in) | Use a grade 2 cylinder head gasket with a thickness of 1.17 mm (0.0460 in) |
| For piston protrusion of 0.604-0.655 mm (0.0237-0.0257 in) | Use a grade 3 cylinder head gasket with a thickness of 1.22 mm (0.0480 in) |
| For piston protrusion of 0.656-0.707 mm (0.0258-0.0278 in) | Use a grade 4 cylinder head gasket with a thickness of 1.27 mm (0.0500 in) |
| For piston protrusion of 0.708-0.760 mm (0.0278-0.0299 in) | Use a grade 5 cylinder head gasket with a thickness of 1.32 mm (0.0519 in) |
| Valve guide inner diameter | 0.235 -0.236 in (5.97 -5.99 mm) |
| Valve stem diameter - intake | 0.2333 -0.2340 in (5.927 -5.943 mm) |
| Valve stem diameter - exhaust | 0.2330 -0.2336 in (5.917 -5.933 mm) |
| Valve stem-to-guide clearance - intake | 0.0011 -0.0025 in (.027 -.063 mm) |
| Valve stem-to-guide clearance - exhaust | 0.0015 -0.0029 in (.037 -.073 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.