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 BLOCKINSPECTIONPISTON AND PISTON PIN
2016 Subaru Legacy 2.5i
Piston And Piston Pin
2016 Subaru Legacy 2.5iSECTION Piston And Piston Pin
WARNING: This page is about a different variant/trim than selected.
- Check the piston and piston pin for damage, cracks or wear. Replace if faulty.
- Check the piston ring groove for wear or damage. Replace if faulty.
- Make sure that the piston pin can be inserted into the piston pin hole with a thumb at 20°C (68°F). Replace if faulty.
Clearance between piston pin hole and piston pin:
Standard
0.004 - 0.008 mm (0.0002 - 0.0003 in)
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.