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.
2021 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
Oil Pump
| Pump type | Trochoid type | ||||
|---|---|---|---|---|---|
| Number of teeth | pcs. | Inner rotor | 10 | ||
| Outer rotor | 11 | ||||
| Outer rotor diameter x Thickness | mm (in) | 71.4 x 14 (2.81 x 0.55) | |||
| Performance (Oil temperature 120°C (248°F)) | 600 r/min | Discharge pressure | kPa (kg/cm2 , psi) | 34 (0.3, 4.9) | |
| Discharge rate | L (US qt, Imp qt)/min. | 5.8 (6.1, 5.1) or more | |||
| 6, 000 r/min | Discharge pressure | kPa (kg/cm2 , psi) | 298 (3.0, 43.2) | ||
| Discharge rate | L (US qt, Imp qt)/min. | 46.6 (49.3, 41.0) or more | |||
| Relief valve working pressure (2-step relief) | 1st opening pressure | kPa (kg/cm2 , psi) | 150 (1.5, 21.7) | ||
| Main opening pressure | kPa (kg/cm2 , psi) | 700 (7.1, 101.5) | |||
Factory Service Tools
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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.