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 MANUALSCHEVROLET1989STEP VAN P30, 7.4 W, AUTOMATIC, 475/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICAL4.8L 6-CYL - VIN [T]TORQUE SPECIFICATIONS
1989 Chevrolet Step Van P30, 7.4 W, Automatic, 475/M40
Torque Specifications
1989 Chevrolet Step Van P30, 7.4 W, Automatic, 475/M40SECTION Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | ||
|---|---|---|---|
| Connecting Rod Cap Nuts | 44 (60) | ||
| Cylinder Head Bolts | (1) 95 (130) | ||
| Flywheel-to-Crankshaft Bolts | 110 (150) | ||
| Intake-to-Exhaust Manifold Bolts | 44 (60) | ||
| Manifold Assy.-to-Cylinder Head | 38 (52) | ||
| Main Bearing Cap Bolts | 65 (90) | ||
| Vibration Damper Bolt | 50 (70) | ||
| Water Pump Bolts | 15 (20) | ||
| INCH Lbs. (N.m) | |||
| Camshaft Thrust Plate Bolts | 80 (9) | ||
| Engine Front Cover Bolts | 80 (9) | ||
| Oil Pump Bolts | 115 (13) | ||
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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.