Escape 4WD V6-181 3.0L DOHC VIN 1 Duratec (2003)
Valve Spring: Specifications
Valve spring compression pressure
Intake (n @ spec. length) .................................................................................................................................. 680 N @ 30.19 mm (153 lbs. @ 1.18 in.)
Exhaust (n @ spec. length) ............................................................................................................................... 680 N @ 30.19 mm (153 lbs. @ 1.18 in.)
Valve spring free length (approximate)
Intake .................................................................................................................................................................................................... 46.8 mm (1.84 in.)
Exhaust ................................................................................................................................................................................................. 46.8 mm (1.84 in.)
Valve spring installed pressure (n @ spec. length)
Intake .................................................................................................................................................................. 228 N @ 39.99 mm (51 lbs. @ 1.57 in.)
Exhaust ............................................................................................................................................................... 228 N @ 39.99 mm (51 lbs. @ 1.57 in.)
Valve springs installed pressure (n @ spec. length -service limit) .............................................................................................. 10% Pressure loss @ 30.09
Valve springs-out of square limit ...................................................................................................................................................................................... 1%
