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Home >> Subaru >> 2005 >> Outback R VDC Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Mechanical (H4SO)) >> Cylinder Head >> Inspection >> Valve Spring

Valve Spring

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  1. Check the valve springs for damage, free length, and tension. Replace the valve spring if it is not within the standard value presented in the table.
  2. To measure the squareness of the valve spring, stand the spring on a surface plate and measure its deflection at the top of spring using a try square.
LENGTH AND TENSION REFERENCE

Free length mm (in) 54.30(2.1378)
Tension/spring height N (kgf, lb)/mm (in) Set 214 - 246 (22 - 25, 48 - 55)/45.0 (1.772)
Lift 526 - 582 (54 - 59, 119 - 130)/34.7 (1.366)
Squareness 2.5°, 2.4 mm (0.094 in)
Fig 1: Measuring Squareness Of Valve Spring
G03828045Courtesy of SUBARU OF AMERICA, INC.