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 MANUALSCHEVROLET2012CRUZE L4-1.8LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECRANKSHAFT MAIN BEARING
2012 Chevrolet Cruze L4-1.8L
Crankshaft Main Bearing
2012 Chevrolet Cruze L4-1.8LSECTION Crankshaft Main Bearing
Crankshaft Bearing Cap Bolt 50 Nm+45�+15� (1) (37 lb ft+45�+15� (1))
Main
(1) - Use NEW fastening nuts.
Crankshaft Main Bearing Journal 1-5 Diameter
Standard Size (brown/green) 54.980-54.997 mm (2.165-2.166 in)
Undersize 0.25 (brown/green) 54.730-54.747 mm (2.155-2.156 in)
Undersize 0.50 (brown/green) 54.482-54.495 mm (2.145-2.146 in)
Crankshaft Main Bearing Journal 3 Width
Standard Size 26.000-26.052 mm (1.024-1.026 in)
Undersize 0.25 26.200-26.252 mm (1.032-1.034 in)
Undersize 0.50 26.400-26.452 mm (1.040-1.042 in)
Crankshaft Main Bearing 1-5 - Bearing Shell Thickness
Standard Size (brown) 1.987-1.993 mm (0.0783-0.0785 in)
Standard Size (green) 1.993-1.999 mm (0.0785-0.0787 in)
Undersize 0.25 (brown/blue) 2.112-2.118 mm (0.0832-0.0834 in)
Undersize 0.25 (green/blue) 2.118-2.124 mm (0.0834-0.0836 in)
Undersize 0.50 (brown/blue) 2.237-2.243 mm (0.0842-0.0844 in)
Undersize 0.50 (green/blue) 2.243-2.249 mm (0.0884-0.0886 in)
Crankshaft Bearing Allowable Clearance 0.005-0.059 mm (0.0002-0.0024 in)
Crankshaft Bearing Allowable End Clearance 0.100-0.202 mm (0.004-0.008 in)
Crankshaft Main Bearing 3 Width
Standard Size 25.85-25.90 mm (1.018-1.020 in)
Undersize 0.25 26.05-26.10 mm (1.026-1.028 in)
Undersize 0.50 26.25-26.30 mm (1.034-1.036 in)
Main
(1) - Use NEW fastening nuts.
Crankshaft Main Bearing Journal 1-5 Diameter
Standard Size (brown/green) 54.980-54.997 mm (2.165-2.166 in)
Undersize 0.25 (brown/green) 54.730-54.747 mm (2.155-2.156 in)
Undersize 0.50 (brown/green) 54.482-54.495 mm (2.145-2.146 in)
Crankshaft Main Bearing Journal 3 Width
Standard Size 26.000-26.052 mm (1.024-1.026 in)
Undersize 0.25 26.200-26.252 mm (1.032-1.034 in)
Undersize 0.50 26.400-26.452 mm (1.040-1.042 in)
Crankshaft Main Bearing 1-5 - Bearing Shell Thickness
Standard Size (brown) 1.987-1.993 mm (0.0783-0.0785 in)
Standard Size (green) 1.993-1.999 mm (0.0785-0.0787 in)
Undersize 0.25 (brown/blue) 2.112-2.118 mm (0.0832-0.0834 in)
Undersize 0.25 (green/blue) 2.118-2.124 mm (0.0834-0.0836 in)
Undersize 0.50 (brown/blue) 2.237-2.243 mm (0.0842-0.0844 in)
Undersize 0.50 (green/blue) 2.243-2.249 mm (0.0884-0.0886 in)
Crankshaft Bearing Allowable Clearance 0.005-0.059 mm (0.0002-0.0024 in)
Crankshaft Bearing Allowable End Clearance 0.100-0.202 mm (0.004-0.008 in)
Crankshaft Main Bearing 3 Width
Standard Size 25.85-25.90 mm (1.018-1.020 in)
Undersize 0.25 26.05-26.10 mm (1.026-1.028 in)
Undersize 0.50 26.25-26.30 mm (1.034-1.036 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.