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 MANUALSCHEVROLET2001LUMINA V6-3.1L VIN JREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYCRANKSHAFT, ENGINE
2001 Chevrolet Lumina V6-3.1L VIN J
Crankshaft, Engine
2001 Chevrolet Lumina V6-3.1L VIN JSECTION Crankshaft, Engine
| Crankshaft Main Bearing Cap Bolt/Stud | 37 Foot Pound-Force (ft.lb) + 77 degrees |
| Crankshaft Oil Deflector Nut | 18 Foot Pound-Force (ft.lb) |
| Main Journal Diameter | 2.6473 - 2.6483 Inch (in) |
| Main Journal Taper | 0.0002 Inch (in) |
| Out Of Round | 0.0002 Inch (in) |
| Flange Runout-Max | 0.0016 in |
| Crankshaft Main Bearing Inside Diameter | 2.6492 - 2.6502 Inch (in) |
| Main Bearing Clearance (except number 3) | 0.0008 - 0.0025 Inch (in) |
| Main Thrust Bearing Clearance (number 3) | 0.0012 - 0.0030 in |
| Crankshaft End Play | 0.0024 - 0.0083 Inch (in) |
| Crankshaft Flange Runout-Max | 0.0016 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.