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Valve Spring

WARNING: This page is about a different variant/trim than selected.
  1. Check valve springs for damage, free length, and tension. Replace valve spring if it is not to the specifications presented below.
  2. To measure the squareness of the valve spring, stand the spring on a surface plate and measure its deflection at the top using a try square.
VALVE SPRING SPECIFICATIONS

Free length 54.30 mm (2.1378 in)
Squareness 2.5°, 2.4 mm (0.094 in) or less
Tension/spring height 214 - 246 N
(22 - 25 kgf, 48 - 55 lb)/ 45.0 mm (1.772 in)
526 - 582 N
(54 - 59 kgf, 119 - 130 lb)/34.7 mm (1.366 in)
Fig 1: Measuring Squareness Of Valve Spring
G04997718Courtesy of SUBARU OF AMERICA, INC.