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 MANUALSCHEVROLET1999LUMINA V6-3.8L VIN KREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON RING, ENGINE
1999 Chevrolet Lumina V6-3.8L VIN K
Piston Ring, Engine
1999 Chevrolet Lumina V6-3.8L VIN KSECTION Piston Ring, Engine
| Piston Ring End Gap | Top Compression | 0.010-0.018 Inch (in) |
| 2nd Compression | 0.023-0.033 Inch (in) | |
| Oil Control | 0. 150-0.155 Inch (in) | |
| Piston Ring Width | Top Compression | 0.0463-0.0471 Inch (in) |
| 2nd Compression | 0.0581-0.0589 Inch (in) | |
| Oil Control | 0.073-0.079 Inch (in) | |
| Piston Ring Side Clearance | Top Compression | 0.0013-0.0031 Inch (in) |
| 2nd Compression | 0.0013-0.0031 Inch (in) | |
| Oil Control | 0.0009-0.0079 Inch (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.