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 MANUALSMITSUBISHI2005LANCER L4-2.4L SOHCREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON RING, ENGINE
2005 Mitsubishi Lancer L4-2.4L SOHC
Piston Ring, Engine
2005 Mitsubishi Lancer L4-2.4L SOHCSECTION Piston Ring, Engine
Check for clearance between the piston ring and ring groove. If it exceeds the limit, replace the ring or piston, or both.
Standard value:
Number 1 0.03 - 0.07 mm (0.0012 - 0.0027 inch)
Number 2 0.02 - 0.06 mm (0.0008 - 0.0023 inch)
Limit 0.1 mm (0.003 inch)
Insert the piston ring into the cylinder bore. Force the ring down with a piston, the piston crown being in contact with the ring, to correctly position it at right angles to the cylinder wall. Then, measure the end gap with a feeler gauge. If the ring gap is excessive, replace the piston ring.
Standard value:
Number 1 0.15 - 0.30 mm (0.006 - 0.012 inch)
Number 2 0.28 - 0.43 mm (0.011 - 0.017 inch)
Oil 0.10 - 0.40 mm (0.003 - 0.015 inch)
Limit:
Number 1, Number 2 0.8 mm (0.03 inch)
Oil 1.0 mm (0.03 inch)
Standard value:
Number 1 0.03 - 0.07 mm (0.0012 - 0.0027 inch)
Number 2 0.02 - 0.06 mm (0.0008 - 0.0023 inch)
Limit 0.1 mm (0.003 inch)
Insert the piston ring into the cylinder bore. Force the ring down with a piston, the piston crown being in contact with the ring, to correctly position it at right angles to the cylinder wall. Then, measure the end gap with a feeler gauge. If the ring gap is excessive, replace the piston ring.
Standard value:
Number 1 0.15 - 0.30 mm (0.006 - 0.012 inch)
Number 2 0.28 - 0.43 mm (0.011 - 0.017 inch)
Oil 0.10 - 0.40 mm (0.003 - 0.015 inch)
Limit:
Number 1, Number 2 0.8 mm (0.03 inch)
Oil 1.0 mm (0.03 inch)
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.