Valve Spring: Pressure
WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
Check valve spring pressure at specified spring height.
Pressure:
Installation
196 N (20.0 kg, 44.1 lb) at height 37.0 mm (1.457 in)
Valve open
More than 433 N (44.2 kg, 97.3 lb) at height 27.8 mm (1.094 in)
If it exceeds the limit, replace spring.