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 MANUALSCHEVROLET1985C 30 P/U 2WD V6-262 4.3LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCOMPRESSOR HVACCOMPRESSOR PULLEYSERVICE AND REPAIRINSTALLATION
1985 Chevrolet C 30 P/U 2WD V6-262 4.3L
Installation
1985 Chevrolet C 30 P/U 2WD V6-262 4.3LSECTION Installation
Fig. 21 Installing pulley & bearing:
1. If original pulley and bearing assembly is being installed, wipe frictional surfaces of pulley clean. If frictional surfaces of pulley show any indication of damage due to overheating, pulley should be replaced.
2. Check bearing for brunnelling, excessive looseness, noise or lubricant leakage. If any of these conditions exist, bearing should be replaced.
3. Press or tap pulley and bearing assembly on neck of compressor until it seats, using tools shown in Fig. 21. Installer will apply force to inner race of bearing, preventing damage to bearing.
4. Check pulley for binding or roughness. It should rotate freely.
5. Install retainer ring.
6. Install clutch plate and hub.
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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.