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.
2005 Ford Five Hundred 2WD V6-3.0L VIN 1FACTORY OEM SERVICE PROCEDURE
Piston, Engine
GENERAL SPECIFICATIONS
Piston
Piston diameter coated, grade 1 88.990-89.010 mm (3.5035-3.5043 inch)
Piston diameter coated, grade 2 88.998-89.022 mm (3.5039-3.5048 inch)
Piston diameter coated, grade 3 89.010-89.030 mm (3.5043-3.5051 inch)
Piston diameter uncoated, grade 1 88.970-88.980 mm (3.5027-3.5031 inch)
Piston diameter uncoated, grade 2 88.978-88.992 mm (3.5030-3.5036 inch)
Piston diameter uncoated, grade 3 88.990-89.000 mm (3.5035-3.5039 inch)
Piston to cylinder bore clearance uncoated 0.018 to 0.042 mm (0.0007-0.0016 inch)
Piston pin bore diameter 21.015-21.020 mm (0.8273-0.8275 inch)
Piston pin diameter 21.011-21.013 mm (0.8271-0.8273 inch)
Piston pin length 60.51-60.08 mm (2.382-2.365 inch)
Piston pin to piston fit 0.002 to 0.009 mm (0.00007-0.00003 inch)
Piston
Piston diameter coated, grade 1 88.990-89.010 mm (3.5035-3.5043 inch)
Piston diameter coated, grade 2 88.998-89.022 mm (3.5039-3.5048 inch)
Piston diameter coated, grade 3 89.010-89.030 mm (3.5043-3.5051 inch)
Piston diameter uncoated, grade 1 88.970-88.980 mm (3.5027-3.5031 inch)
Piston diameter uncoated, grade 2 88.978-88.992 mm (3.5030-3.5036 inch)
Piston diameter uncoated, grade 3 88.990-89.000 mm (3.5035-3.5039 inch)
Piston to cylinder bore clearance uncoated 0.018 to 0.042 mm (0.0007-0.0016 inch)
Piston pin bore diameter 21.015-21.020 mm (0.8273-0.8275 inch)
Piston pin diameter 21.011-21.013 mm (0.8271-0.8273 inch)
Piston pin length 60.51-60.08 mm (2.382-2.365 inch)
Piston pin to piston fit 0.002 to 0.009 mm (0.00007-0.00003 inch)
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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