Sentra L4-2.5L (QR25DE) (2003)
Valve Spring: Mechanical Specifications
Valve Spring
Free height standard
Intake (blue) .................................................................................................................................................. 44.84 - 45.34 mm (1.7654 - 1.7850 in.)
Exhaust (yellow) ........................................................................................................................................... 45.28 - 45.78 mm (1.7827 - 1.8024 in.)
Out-of-square ..................................................................................................................................................................................... 1.9 mm (0.0748 in.)
Installation height
Intake (blue) and Exhaust (yellow) ............................................................................................................................................ 35.30 mm (1.390 in.)
Height during valve open
Intake (blue) ............................................................................................................................................................................ 24.94 mm (0.9819 in.)
Exhaust (yellow) ...................................................................................................................................................................... 26.39 mm (1.0390 in.)