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 MANUALSCHEVROLET2006OPTRA (CANADA) L4-2.0LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECRANKSHAFT, ENGINESERVICE LIMITS & GENERAL SPECIFICATIONS
2006 Chevrolet Optra (CANADA) L4-2.0L
Service Limits & General Specifications
2006 Chevrolet Optra (CANADA) L4-2.0LSECTION Service Limits & General Specifications
Crankshaft
End Play 0.070 - 0.302 mm (0.0027 - 0.0118 in)
Main Bearing Clearance - All 0.015 - 0.040 mm (0.00059 - 0.00157 in)
Main Journal Diameter - All 57.978 - 57.995 mm (2.2788 - 2.2832 in)
Radial Runout - Shaft Support on No. 1 and No. 5 Bearings Measured at No. 3 Journal 0.03 mm (0.00118 in)
Service Oversize, Available in 2 sizes 0.25 and 0.5 mm (0.00098 and 0.019 in)
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.