Valve Spring Dimensions And Valve Spring Pressure Load

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

Check valve spring pressure with valve spring seat installed at specified spring height. Replace if not within specifications.

CAUTION: Do not remove the valve spring seat.

Fig 1: Checking Valve Spring Pressure Load

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Checking Valve Spring Dimensions

Courtesy of NISSAN MOTOR CO., U.S.A.