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 MANUALSCHEVROLET1986STEP VAN P30, 6.2 J, AUTOMATIC, 400/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICAL4.3L V6 - VINS [N,Z]TORQUE SPECIFICATIONS
1986 Chevrolet Step Van P30, 6.2 J, Automatic, 400/M40
Torque Specifications
1986 Chevrolet Step Van P30, 6.2 J, Automatic, 400/M40SECTION Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | ||
|---|---|---|---|
| Camshaft Sprocket Bolts | 18 (24) | ||
| Connecting Rod Nuts | 45 (61) | ||
| Cylinder Head Bolts | 65 (88) | ||
| Exhaust Manifold Bolts | (1) 20 (27) | ||
| Stainless Steel Manifold | (1) 26 (35) | ||
| Flywheel-to-Crankshaft Bolts | 75 (102) | ||
| Intake Manifold Bolts | 36 (49) | ||
| Main Bearing Cap Bolts | 75 (102) | ||
| Oil Pump Bolt | 65 (88) | ||
| Vibration Damper Bolt | 70 (95) | ||
| Water Pump Bolts | 30 (41) | ||
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RENDER: 1.0x
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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.