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Valve Spring Dimensions And Valve Spring Pressure Load

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Check valve spring pressure at specified spring height.

  1. Standard: 166 - 188 N (16.9 - 19.2 kg, 37.3 - 42.3 lb) at height 37.0 mm (1.457 in) 
  2. Limit: 378 - 426 N (38.6 - 43.5 kg, 85.0 - 95.8 lb) at height 27.8 mm (1.094 in) 

If it is not within specifications, replace the spring.

Fig 1: Valve Spring Dimensions And Valve Spring Pressure Load
G00876997Courtesy of NISSAN MOTOR CO., U.S.A.