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 MANUALSCHEVROLET2003MALIBU V6-3.1L VIN JREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYCRANKSHAFT, ENGINE
2003 Chevrolet Malibu V6-3.1L VIN J
Crankshaft, Engine
2003 Chevrolet Malibu V6-3.1L VIN JSECTION Crankshaft, Engine
Main Journal Diameter 67.239 - 67.257 mm (2.6473 - 2.6483 in)
Main Journal Taper 0.005 mm (0.0002 in)
Out Of Round 0.005 mm (0.0002 in)
Flange Runout-Max 0.04 mm (0.0016 in)
Cylinder Block Main Bearing Bore Diameter 7,2.155 - 72.168 mm (2.8407 - 2.8412 in)
Crankshaft Main Bearing Inside Diameter 67.289 - 67.316 mm (2.6492 - 2.6502 in)
Main Bearing Clearance - Except Number 3 0.019 - 0.064 mm (0.0008 - 0.0025 in)
Main Thrust Bearing Clearance - Number 3 0.032 - 0.077 mm (0.0012 - 0.0030 in)
Crankshaft End Play 0.060 - 0.210 mm (0.0024 - 0.0083 inch)
Crankshaft Flange Runout-Max 0.04 mm (0.0016 in)
Crankshaft Main Bearing Cap Bolt/Stud
First Pass 50 Nm (37 ft. lbs.)
Final Pass (77 degrees)
Crankshaft Oil Deflector Nut 25 Nm (18 ft. lbs.)
Main Journal Taper 0.005 mm (0.0002 in)
Out Of Round 0.005 mm (0.0002 in)
Flange Runout-Max 0.04 mm (0.0016 in)
Cylinder Block Main Bearing Bore Diameter 7,2.155 - 72.168 mm (2.8407 - 2.8412 in)
Crankshaft Main Bearing Inside Diameter 67.289 - 67.316 mm (2.6492 - 2.6502 in)
Main Bearing Clearance - Except Number 3 0.019 - 0.064 mm (0.0008 - 0.0025 in)
Main Thrust Bearing Clearance - Number 3 0.032 - 0.077 mm (0.0012 - 0.0030 in)
Crankshaft End Play 0.060 - 0.210 mm (0.0024 - 0.0083 inch)
Crankshaft Flange Runout-Max 0.04 mm (0.0016 in)
Crankshaft Main Bearing Cap Bolt/Stud
First Pass 50 Nm (37 ft. lbs.)
Final Pass (77 degrees)
Crankshaft Oil Deflector Nut 25 Nm (18 ft. lbs.)
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.