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 MANUALSOLDSMOBILE1998EIGHTY-EIGHT V6-3.8L VIN KREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON RING, ENGINE
1998 Oldsmobile Eighty-Eight V6-3.8L VIN K
Piston Ring, Engine
1998 Oldsmobile Eighty-Eight V6-3.8L VIN KSECTION Piston Ring, Engine
Piston Rings
Piston Ring Groove Depth
Top Compression 4.019 - 4.146 mm (0.158 - 0.163 inch)
2nd Compression 4.214 - 4.341 mm (0.0166 - 0.171 inch)
Oil Control 3.814 - 3.941 mm (0.150 - 0.155 inch)
Piston Ring End Gap
Top Compression 0.305 - 0.559 mm (0.012 - 0.022 inch)
2nd Compression 0.762 - 1.016 mm (0.030 - 0.040 inch)
Oil Control 0.254 - 0.762 mm (0.010 - 0.030 inch)
Piston Ring Side Clearance
Top Compression 0.033 - 0.079 mm (0.0013 - 0.0031 inch)
2nd Compression 0.033 - 0.079 mm (0.0013 - 0.0031 inch)
Oil Control 0.023 - 0.201 mm (0.0009 - 0.0079 inch)
Piston Ring Width
Top Compression 1.176 - 1.197 mm (0.0463 - 0.0471 inch)
2nd Compression 1.476 - 1.497 mm (0.0581 - 0.0589 inch)
Oil Control 1.854 - 2.007 mm (0.073 - 0.079 inch)
Piston Ring Groove Depth
Top Compression 4.019 - 4.146 mm (0.158 - 0.163 inch)
2nd Compression 4.214 - 4.341 mm (0.0166 - 0.171 inch)
Oil Control 3.814 - 3.941 mm (0.150 - 0.155 inch)
Piston Ring End Gap
Top Compression 0.305 - 0.559 mm (0.012 - 0.022 inch)
2nd Compression 0.762 - 1.016 mm (0.030 - 0.040 inch)
Oil Control 0.254 - 0.762 mm (0.010 - 0.030 inch)
Piston Ring Side Clearance
Top Compression 0.033 - 0.079 mm (0.0013 - 0.0031 inch)
2nd Compression 0.033 - 0.079 mm (0.0013 - 0.0031 inch)
Oil Control 0.023 - 0.201 mm (0.0009 - 0.0079 inch)
Piston Ring Width
Top Compression 1.176 - 1.197 mm (0.0463 - 0.0471 inch)
2nd Compression 1.476 - 1.497 mm (0.0581 - 0.0589 inch)
Oil Control 1.854 - 2.007 mm (0.073 - 0.079 inch)
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.