Expedition 4WD V8-5.4L SOHC VIN 5 (2005)
Valve Clearance: Specifications
GENERAL SPECIFICATIONS
Valves
Valve stem-to-guide clearance - intake .......................................................................................................................... 0.020-0.045 mm(0.001-0.002 in)
Valve stem-to-guide clearance - exhaust ........................................................................................................................ 0.069-0.094 mm(0.003-0.004 in)
Valve head diameter intake ............................................................................................................................................ 33.62-33.98 mm(1.324-1.338 in)
Valve head diameter exhaust ................................................................................................................................... 37.32-37.68 mm(1.469-1.483 in)
Valve face runout ................................................................................................................................................................................ 0.05 mm (0.002 in)
Valve face angle ............................................................................................................................................................................................. 45.5 degrees
Valve seat width intake .......................................................................................................................................................... 1.2-1.4 mm (0.047-0.055in)
Valve seat width exhaust ........................................................................................................................................................ 1.4-1.6 mm (0.055-0.063in)
Valve seat angle ..................................................................................................................................................................................... 44.5-45.0 degrees
Valve spring free length ........................................................................................................................................................................ 55.7 mm (2.19 in)
Valve spring compression pressure ................................................................................................. 350 N (79 lbs) ± 17.5 N(4 lbs) (a 42.04 mm (1.66in)
Valve spring installed height ............................................................................................................................................................... 42.04 mm (1.66 in)
Valve spring installed pressure ..................................................................................................... 350 N (79 lbs) ± 17.5 N (4 lbs) @ 42.04 mm (1.66 in)
