Altima 2.5 L4-2.5L (QR25DE) (2002)
Valve: Specifications
Valve head diameter "D"
Intake
35.5 - 35.8 mm
Exhaust 30.5 - 30.8 mm
Valve length "L"
Intake
97.16 mm
Exhaust 98.82 mm
Valve stem diameter "d"
Intake
5.965 - 5.980 mm
Exhaust 5.955 - 5.970 mm
Valve seat angle "a"
Intake
45°15' - 45°45'
Exhaust 45°15' - 45°45'
Valve margin "T"
Intake
1.1 mm
Exhaust 1.3 mm