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 MANUALSSUBARU2014FORESTER 2.5I, ENG CD FB25BA, STANDARD TRANSREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICALENGINE MECHANICAL (H4DO)CYLINDER BLOCKINSPECTIONPISTON AND PISTON PIN
2014 Subaru Forester 2.5i, Eng CD FB25BA, Standard Trans
Piston And Piston Pin
2014 Subaru Forester 2.5i, Eng CD FB25BA, Standard TransSECTION Piston And Piston Pin
- Check the piston and piston pin for wear or crack.
- Check the snap ring for distortion or wear.
- Check the piston ring groove for damage.
- Check the circlip groove (A) for burr.NOTE: If the burr is found, remove the burr from groove.
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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.