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 MANUALSSUBARU1999LEGACY L SEDAN AWD F4-2.2L SOHCREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON RING, ENGINE
1999 Subaru Legacy L Sedan AWD F4-2.2L SOHC
Piston Ring, Engine
1999 Subaru Legacy L Sedan AWD F4-2.2L SOHCSECTION Piston Ring, Engine
| Number of Rings | 2 Compression, 1 Oil |
| Top Ring End Gap (STD) | 0.20-0.35 Millimeter (mm) |
| Top Ring End Gap (Limit) | 1.0 Millimeter (mm) |
| Second Ring End Gap (STD) | 0.37-0.52 Millimeter (mm) |
| Second Ring End Gap (Limit) | 1.0 Millimeter (mm) |
| Oil Ring End Gap (STD) | 0.20-0.50 Millimeter (mm) |
| Oil Ring End Gap (Limit) | 1.0 Millimeter (mm) |
| Clearance Between Ring and Groove, Top Ring (STD) | 0.040-0.080 Millimeter (mm) |
| Clearance Between Ring and Groove, Top Ring (Limit) | 0.15 Millimeter (mm) |
| Clearance Between Ring and Groove, Second Ring (STD) | 0.030-0.070 Millimeter (mm) |
| Clearance Between Ring and Groove, Second Ring (Limit) | 0.15 Millimeter (mm) |
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.