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 MANUALSCADILLAC1999SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYSYSTEM SPECIFICATIONSMAIN BEARING CAP TORQUE
1999 Cadillac Seville SLS V8-4.6L VIN Y
Main Bearing Cap Torque
1999 Cadillac Seville SLS V8-4.6L VIN YSECTION Main Bearing Cap Torque
Tighten the lower crankcase bolts in proper sequence.
First Pass
Tighten the lower crankcase bearing bolts (numbers 1 through 20) to 20 Nm (15 lb ft) in the proper sequence.
Final Pass
Tighten the lower crankcase bolts (numbers 1 through 20) an additional 65 degrees in the proper sequence using the J 36660-A.
Tighten the upper to lower crankcase perimeter bolts (numbers 1 through 8) to 30 Nm (22 lb ft).
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.