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.
2003 Ford Excursion 2WD V8-6.0L DSL TurboFACTORY OEM SERVICE PROCEDURE
System Specifications
Cylinder head and valve train
Cylinder head gasket surface flatness 0.05 mm (0.002 inch) per 51 mm (2 inch), 0.10 mm (0.004 inch) per total surface area
Cylinder head thickness 95 mm (3.74 inch)
Valve arrangement (front to rear) --
Valve guide bore diameter 7.003 - 7.029 mm (0.276 - 0.277 inch)
Valve stem diameter 6.947 - 6.965 mm (0.2735 - 0.272 inch)
Valve stem-to-guide clearance 0.140 mm (0.0055 inch) maximum
Valve head diameter --
Valve face runout (T.I.R. max) 0.038 mm (0.015 inch)
Valve face angle
Exhaust 37.5 degrees
Intake 30 degrees
Valve seat width
Exhaust 1.80 - 2.56 mm (0.071 - 0.101 inch)
Intake 1.48 - 2.24 mm (0.058 - 0.088 inch)
Valve seat runout 0.0035 mm (0.0014 inch)
Valve seat angle
Exhaust 37.5 degrees
Intake 30 degrees
Valve spring free length 51.96 mm (2.045 inch)
Valve spring solid height 36.1 mm (1.42 inch)
Valve spring compression pressure 46.30 mm @ 340 ± 17 N (1.82 inch 76.5 ± 3.8 ft. lbs.)
For torque specifications, refer to the service procedure.
Cylinder head gasket surface flatness 0.05 mm (0.002 inch) per 51 mm (2 inch), 0.10 mm (0.004 inch) per total surface area
Cylinder head thickness 95 mm (3.74 inch)
Valve arrangement (front to rear) --
Valve guide bore diameter 7.003 - 7.029 mm (0.276 - 0.277 inch)
Valve stem diameter 6.947 - 6.965 mm (0.2735 - 0.272 inch)
Valve stem-to-guide clearance 0.140 mm (0.0055 inch) maximum
Valve head diameter --
Valve face runout (T.I.R. max) 0.038 mm (0.015 inch)
Valve face angle
Exhaust 37.5 degrees
Intake 30 degrees
Valve seat width
Exhaust 1.80 - 2.56 mm (0.071 - 0.101 inch)
Intake 1.48 - 2.24 mm (0.058 - 0.088 inch)
Valve seat runout 0.0035 mm (0.0014 inch)
Valve seat angle
Exhaust 37.5 degrees
Intake 30 degrees
Valve spring free length 51.96 mm (2.045 inch)
Valve spring solid height 36.1 mm (1.42 inch)
Valve spring compression pressure 46.30 mm @ 340 ± 17 N (1.82 inch 76.5 ± 3.8 ft. lbs.)
For torque specifications, refer to the service procedure.
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.