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 MANUALSCADILLAC1998SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINECYLINDER BLOCK ASSEMBLYSPECIFICATIONSDIMENSION & CLEARANCE SPECIFICATIONS - PISTON RINGS
1998 Cadillac Seville SLS V8-4.6L VIN Y
Dimension & Clearance Specifications - Piston Rings
1998 Cadillac Seville SLS V8-4.6L VIN YSECTION Dimension & Clearance Specifications - Piston Rings
Side Clearance
Top and Second Compression Ring 0.040-0.095 mm (0.0016-0.016 in.)
Oil Rings None-Side Sealing
Ring End Gap
Top Compression Ring 0.25-0.40 mm (0.010-0.016 in.)
Second Compression Ring 0.35-0.50 mm (0.014-0.020 in.)
Oil Rings 0.25-0.76 mm (0.010-0.030 in.)
Number of Oil Rings 2 Rings-1 Expander
Width of Compression Ring Groove
Top Ring 1.230-1.255 mm (0.048-0.049 in.)
Second Ring 1.530-1.555 mm (0.060-0.061 in.)
Oil Ring 3.030-3.055 mm (0.119-0.120 in.)
Top and Second Compression Ring 0.040-0.095 mm (0.0016-0.016 in.)
Oil Rings None-Side Sealing
Ring End Gap
Top Compression Ring 0.25-0.40 mm (0.010-0.016 in.)
Second Compression Ring 0.35-0.50 mm (0.014-0.020 in.)
Oil Rings 0.25-0.76 mm (0.010-0.030 in.)
Number of Oil Rings 2 Rings-1 Expander
Width of Compression Ring Groove
Top Ring 1.230-1.255 mm (0.048-0.049 in.)
Second Ring 1.530-1.555 mm (0.060-0.061 in.)
Oil Ring 3.030-3.055 mm (0.119-0.120 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.