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 MANUALSFORD2010FOCUS S, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 529 (ENGINE)DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIESPISTONNOTES
2010 Ford Focus S, Standard
Disassembly And Assembly Of Subassemblies: Piston: Notes
2010 Ford Focus S, StandardSECTION Notes
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
Material
| Item | Specification |
|---|---|
| Motorcraft SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP (US); Motorcraft SAE 5W-20 Super Premium Motor Oil CXO-5W20-LSP12 (Canada); or equivalent |
WSS-M2C930-A |
| Item | Part Number | Description |
|---|---|---|
| 1 | 6150 | Piston compression upper ring |
| 2 | 6152 | Piston compression lower ring |
| 3 | 6159 | Piston oil control upper segment ring |
| 4 | 6161 | Piston oil control spacer |
| 5 | 6159 | Piston oil control lower segment ring |
| 6 | 6140 | Piston pin retainer |
| 7 | 6140 | Piston pin retainer |
| 8 | 6135 | Piston pin |
| 9 | 6200 | Connecting rod |
| 10 | 6110 | Piston |
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.