Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU2016LEGACY 2.5IREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 2 (ENGINE MECHANICAL (H6DO))CYLINDER HEADINSPECTIONVALVE SPRING
2016 Subaru Legacy 2.5i
Valve Spring
2016 Subaru Legacy 2.5iSECTION Valve Spring
WARNING: This page is about a different variant/trim than selected.
- 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.
- To measure the squareness of the valve spring, stand the valve spring on a surface plate and measure its deflection at the top of the spring using a try square.
Free length mm (in) 49.06 (1.9315) Tension/spring height
N (kgf, lb)/mm (in)Set 182 - 210 (18.6 - 21.4, 40.9 - 47.2)/31.0 (1.220 in) Lift 316 - 350 (32.2 - 35.7, 71.0 - 78.7)/21.0 (0.827 in) Squareness 2.5°, 2.1 mm (0.083 in) or less
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.