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 MANUALSCADILLAC1991SEVILLE STSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICAL4.9L V8 - VIN [B]TORQUE SPECIFICATIONS
1991 Cadillac Seville STS
Torque Specifications
1991 Cadillac Seville STSSECTION Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Camshaft Sprocket Bolt | 36 (50) | |||||||||||
| Connecting Rod Nut | 25 (34) | |||||||||||
| Crankshaft Balancer Bolt | 70 (95) | |||||||||||
| Crankshaft Pulley Bolt | 18 (24) | |||||||||||
| Cylinder Head Bolt (1) | ||||||||||||
| Step 1 | 38 (52) | |||||||||||
| Step 2 | 68 (92) | |||||||||||
| Step 3 | (2) * | |||||||||||
| Engine-To-Transaxle Bolt | 34 (46) | |||||||||||
| Exhaust Manifold Bolt | 16 (22) | |||||||||||
| Flywheel Bolt | 70 (95) | |||||||||||
| Front Timing Case Cover Bolt | ||||||||||||
| Lower 4 | 17 (23) | |||||||||||
| Upper 4 | 30 (41) | |||||||||||
| Intake Manifold Bolt (3) | ||||||||||||
| Step 1 | 8 (11) | |||||||||||
| Step 2 | 12 (16) | |||||||||||
| Step 3 | Repeat Step 2 | |||||||||||
| Lower Engine Damper Nut | 22 (30) | |||||||||||
| Lower Thermostat Housing-To-Intake Manifold Bolt | 23 (31) | |||||||||||
| Main Bearing Cap Bolt | 85 (115) | |||||||||||
| Oil Filter Adapter Bolt | 14 (19) | |||||||||||
| Oil Pan Bolt | 14 (19) | |||||||||||
| Oil Pump-To-Block Bolt | 14 (19) | |||||||||||
| Oil Pump-To-Block Nut | 22 (30) | |||||||||||
| Oxygen Sensor | 30 (41) | |||||||||||
| Rear Engine-To-Transaxle Mounting Bolt | 34 (46) | |||||||||||
| Right Rear Transaxle Mount Bolt | 34 (46) | |||||||||||
| Rocker Arm Pivot Bolt | 22 (30) | |||||||||||
| Rocker Arm Support Retaining Nut | (4) 37 (50) | |||||||||||
| Upper Thermostat Housing-To-Lower Housing Bolt | 19 (26) | |||||||||||
| Valve Lifter Retainer Bolt | 15 (20) | |||||||||||
| Water Pump | (5) * | |||||||||||
| INCH Lbs. (N.m) | ||||||||||||
| Oil Pump Cover Bolt | 84 (9) | |||||||||||
| Rocker Arm Support-To-Cylinder Head Bolt | (4) 84 (9) | |||||||||||
| Valve Cover Bolt | 96 (11) | |||||||||||
| Valve Cover Bolt (1992) | 84 (9) | |||||||||||
|
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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.