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 MANUALSMITSUBISHI2009LANCER L4-2.4L (4B12)REPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINECYLINDER BLOCK ASSEMBLYSPECIFICATIONS
2009 Mitsubishi Lancer L4-2.4L (4B12)
Cylinder Block Assembly: Specifications
2009 Mitsubishi Lancer L4-2.4L (4B12)SECTION Specifications
Cylinder block Identification mark
Distortion of cylinder block top surface mm (in) - Limit 0.05 (0.0020)
Grinding limit of cylinder block top surface mm (in) - Limit 0.2 (0.008)
Cylinder block cylinder bore mm (in) - Standard Value 88 (3.46)
Cylindricity of cylinder block mm (in) - Standard Value 0.0076 (0.0003)
Clearance of connecting rod big end thrust mm (in) - Standard Value 0.10 - 0.25 (0.004 - 0.010)
Clearance of connecting rod big end thrust mm (in) - Limit 0.4 (0.016)
Connecting Rod Bearing Clearance - Standard value 0.018 - 0.045 mm (0.0007 - 0.0018 inch)
Connecting Rod Bearing Clearance - Limit 0.1 mm (0.04 inch)
Connecting rod bearing oil clearance mm (in) - Standard Value 0.018 - 0.045 0.0007 - 0.0018
Connecting rod bearing oil clearance mm (in) - Limit 0.1 0.04
Piston Ring End Gap
Number 1 - Standard Value mm (in) 0.15 - 0.25 (0.006 - 0.011)
Number 1 - Limit mm (in) 0.8 (0.03)
Number 2 - Standard Value mm (in) 0.25 - 0.40 (0.010 - 0.016)
Number 2 - Limit mm (in) 0.8 (0.03)
Oil Ring - Standard Value mm (in) 0.10 - 0.35 (0.004 - 0.014)
Oil Ring - Limit mm (in) 1.0 (0.04)
Piston Ring and Ring Groove Clearance
Number 1 - Standard Value mm (in) 0.03 - 0.07 (0.001 - 0.003)
Number 1 - Limit mm (in) 0.1 (0.004)
Number 2 - Standard Value mm (in) 0.03 - 0.07 (0.001 - 0.003)
Number 2 - Limit mm (in) 0.1 (0.004)
Crankshaft Bearing cap bolt 26.5 ± 2.0 Nm (20 ± 1 ft-lb) +45°
Connecting rod cap bolt 5.0 Nm (44 in-lb) - 20 Nm (14 ft-lb) +90°
Crankshaft Pulley bolt 210 Nm 155 ft-lb
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.