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 MANUALSCHEVROLET1999ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECAMSHAFT, ENGINE
1999 Chevrolet Astro Van 2WD V6-4.3L VIN W
Camshaft, Engine
1999 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Camshaft, Engine
| Camshaft Retaining Bolt | 106 Inch Pound-Force (in.lb) | ||
| Camshaft Sprocket Bolt | 18 Foot Pound-Force (ft.lb) | ||
| End Play | 0.0010-0.0090 Inch (in) | ||
| Journal Diameter | 1.8677-1.8696 Inch (in) | ||
| Journal Diameter(Out Of Round) | 0.0010 Inch (in) | ||
| Runout | 0.0026 Inch (in) | ||
| Lobe Lift | Intake | Vin W | 0.274-0.278 Inch (in) |
| Vin X | 0.266-0.270 Inch (in) | ||
| Exhaust | Vin W | 0.283-0.287 Inch (in) | |
| Vin X | 0.257-0.261 Inch (in) | ||
| Valve Lift | Intake | VIN W | 0.4140 Inch (in) |
| VIN X | 0.4020 Inch (in) | ||
| Exhaust | VIN W | 0.4280 Inch (in) | |
| VIN X | 0.3890 Inch (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.