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 MANUALSFORD1997CONTOUR LX, 2.5 L, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICALENGINE - 2.5L V6 -VIN [L]OVERHAULCYLINDER BLOCK ASSEMBLYPISTON & ROD ASSEMBLY
1997 Ford Contour LX, 2.5 L, Standard
Piston & Rod Assembly
1997 Ford Contour LX, 2.5 L, StandardSECTION Piston & Rod Assembly
- Ensure connecting rod and connecting rod cap are marked with matching cylinder number for reassembly reference. Install piston with arrow on piston pointing towards front of engine. Install connecting rod and bearing cap with numbers on components facing same side.
- With piston removed from cylinder block, hold piston with connecting rod positioned horizontally. Lift connecting rod upward. Release connecting rod and note whether connecting rod drops freely. Replace piston or piston pin if connecting rod fails to drop freely.
- Ensure piston pin diameter and pin-to-piston fit are as specified. See PISTONS, PINS & RINGS table under ENGINE SPECIFICATIONS.
- Check center-to-center length. Ensure connecting rod bend, crankpin bore and piston pin bushing bore diameter are within specification. See CONNECTING RODS table under ENGINE SPECIFICATIONS.
- To reassemble, install piston on connecting rod. Press piston pin through piston until piston pin bottoms on retaining ring. Install NEW piston pin retainer. Ensure connecting rod moves freely on 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.